2 * (C) Copyright 2004-2007 Shawn Betts
3 * (C) Copyright 2007-2012 John J. Foerch
4 * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
6 * Use, modification, and distribution are subject to the terms specified in the
10 var define_buffer_local_hook = local_hook_definer("window");
12 function define_current_buffer_hook (hook_name, existing_hook) {
13 define_buffer_local_hook(hook_name);
14 add_hook(existing_hook, function (buffer) {
15 if (!buffer.window.buffers || buffer != buffer.window.buffers.current)
17 var hook = conkeror[hook_name];
18 hook.run.apply(hook, Array.prototype.slice.call(arguments));
22 define_buffer_local_hook("buffer_title_change_hook");
23 define_buffer_local_hook("buffer_description_change_hook");
24 define_buffer_local_hook("buffer_icon_change_hook");
25 define_buffer_local_hook("select_buffer_hook");
26 define_buffer_local_hook("create_buffer_early_hook");
27 define_buffer_local_hook("create_buffer_late_hook");
28 define_buffer_local_hook("create_buffer_hook");
29 define_buffer_local_hook("kill_buffer_hook");
30 define_buffer_local_hook("move_buffer_hook");
31 define_buffer_local_hook("buffer_scroll_hook");
32 define_buffer_local_hook("buffer_dom_content_loaded_hook");
33 define_buffer_local_hook("buffer_loaded_hook");
34 define_buffer_local_hook("set_input_mode_hook");
35 define_buffer_local_hook("zoom_hook");
37 define_current_buffer_hook("current_buffer_title_change_hook", "buffer_title_change_hook");
38 define_current_buffer_hook("current_buffer_description_change_hook", "buffer_description_change_hook");
39 define_current_buffer_hook("current_buffer_icon_change_hook", "buffer_icon_change_hook");
40 define_current_buffer_hook("current_buffer_scroll_hook", "buffer_scroll_hook");
41 define_current_buffer_hook("current_buffer_dom_content_loaded_hook", "buffer_dom_content_loaded_hook");
42 define_current_buffer_hook("current_buffer_loaded_hook", "buffer_loaded_hook");
43 define_current_buffer_hook("current_buffer_zoom_hook", "zoom_hook");
46 function buffer_position_before (container, b, i) {
50 function buffer_position_after (container, b, i) {
54 function buffer_position_end (container, b, i) {
55 return container.count;
58 function buffer_position_end_by_type (container, b, i) {
59 // after last buffer of same type
60 var count = container.count;
63 container.get_buffer(p).constructor != b.constructor)
73 define_variable("new_buffer_position", buffer_position_end,
74 "Used to compute the position in the buffer-list at which "+
75 "to insert new buffers which do not have an opener. These "+
76 "include buffers created by typing an url or webjump, or "+
77 "buffers created via command-line remoting. The value "+
78 "should be a number giving the index or a function of three "+
79 "arguments that returns the index at which to insert the "+
80 "new buffer. The first argument is the buffer_container "+
81 "into which the new buffer is being inserted. The second "+
82 "argument is the buffer to be inserted. The third argument "+
83 "is the position of the currently selected buffer. Several "+
84 "such functions are provided, including, buffer_position_before, "+
85 "buffer_position_after, buffer_position_end, and "+
86 "buffer_position_end_by_type.");
88 define_variable("new_buffer_with_opener_position", buffer_position_after,
89 "Used to compute the position in the buffer-list at which "+
90 "to insert new buffers which have an opener in the same "+
91 "window. These include buffers created by following a link "+
92 "or frame, and contextual help buffers. The allowed values "+
93 "are the same as those for `new_buffer_position', except that "+
94 "the second argument passed to the function is the index of "+
95 "the opener instead of the index of the current buffer (often "+
96 "one and the same).");
98 define_variable("bury_buffer_position", null,
99 "Used to compute the position in the buffer-list to move a "+
100 "buried buffer to. A value of null prevents bury-buffer "+
101 "from moving the buffer at all. Other allowed values are "+
102 "the same as those for `new_buffer_position', except that "+
103 "the second argument passed to the function is the index of "+
104 "the new buffer that will be selected after burying the "+
107 define_variable("allow_browser_window_close", true,
108 "If this is set to true, if a content buffer page calls " +
109 "window.close() from JavaScript and is not prevented by the " +
110 "normal Mozilla mechanism that restricts pages from closing " +
111 "a window that was not opened by a script, the buffer will be " +
112 "killed, deleting the window as well if it is the only buffer.");
114 define_keywords("$opener", "$position");
115 function buffer_creator (type) {
116 var args = forward_keywords(arguments);
117 return function (window) {
118 return new type(window, args);
122 function point_state () {
124 point_state.prototype = {
125 constructor: point_state,
126 toString: function () "#<point_state>",
134 function point_update_element (b) {
137 var e = xpath_find_node(b.document, p.xpath);
139 var rect = e.getBoundingClientRect();
142 p.width = rect.width;
143 p.height = rect.height;
145 b.point_history[b.point_history.index] = new point_state();
149 add_hook("current_buffer_loaded_hook", point_update_element);
150 add_hook("current_buffer_dom_content_loaded_hook", point_update_element);
151 add_hook("current_buffer_scroll_hook", point_update_element);
153 function buffer_modality (buffer) {
154 buffer.keymaps.push(default_global_keymap);
157 function buffer (window) {
158 this.constructor_begin();
159 keywords(arguments, $position = this.default_position);
160 this.opener = arguments.$opener;
161 this.window = window;
162 var element = create_XUL(window, "vbox");
163 element.setAttribute("flex", "1");
164 var browser = create_XUL(window, "browser");
165 browser.setAttribute("type", "content");
166 browser.setAttribute("flex", "1");
167 browser.setAttribute("autocompletepopup", "popup_autocomplete");
168 element.appendChild(browser);
169 this.window.buffers.container.appendChild(element);
170 this.window.buffers.insert(this, arguments.$position, this.opener);
171 this.window.buffers.buffer_history.push(this);
172 this.element = element;
173 this.browser = element.firstChild;
174 this.element.conkeror_buffer_object = this;
176 this.local = { __proto__: conkeror };
178 this.enabled_modes = [];
179 this.default_browser_object_classes = {};
183 this.browser.addEventListener("scroll", function (event) {
184 buffer_scroll_hook.run(buffer);
185 }, true /* capture */);
187 this.browser.addEventListener("DOMContentLoaded", function (event) {
188 buffer_dom_content_loaded_hook.run(buffer);
189 }, true /* capture */);
191 this.window.setTimeout(function () { create_buffer_late_hook.run(buffer); }, 0);
193 this.browser.addEventListener("load", function (event) {
194 if (event.target == buffer.document)
195 buffer_loaded_hook.run(buffer);
196 }, true /* capture */);
198 this.browser.addEventListener("DOMWindowClose", function (event) {
199 /* This call to preventDefault is very important; without
200 * it, somehow Mozilla does something bad and as a result
201 * the window loses focus, causing keyboard commands to
203 event.preventDefault();
205 if (allow_browser_window_close)
206 kill_buffer(buffer, true);
209 this.browser.addEventListener("focus", function (event) {
210 if (buffer.focusblocker &&
211 event.target instanceof Ci.nsIDOMHTMLElement &&
212 buffer.focusblocker(buffer, event))
216 buffer.set_input_mode();
219 this.browser.addEventListener("blur", function (event) {
220 buffer.set_input_mode();
225 this.web_navigation.sessionHistory.addSHistoryListener(this);
226 this.point_history = [];
227 this.point_history.index = -1;
229 this.modalities = [buffer_modality];
231 // When create_buffer_early_hook runs, basic buffer properties
232 // will be available, but not the properties subclasses.
233 create_buffer_early_hook.run(this);
235 this.constructor_end();
239 toString: function () "#<buffer>",
240 QueryInterface: generate_QI(Ci.nsISHistoryListener, Ci.nsISupportsWeakReference),
242 // default_position is the default value for the $position keyword to
243 // the buffer constructor. This property can be set on the prototype
244 // of a subclass in order to override new_buffer_position and
245 // new_buffer_with_opener_position for specific types of buffers.
246 default_position: null,
248 /* Saved focus state */
249 saved_focused_frame: null,
250 saved_focused_element: null,
252 // get title () [must be defined by subclasses]
253 // get name () [must be defined by subclasses]
254 dead: false, /* This is set when the buffer is killed */
259 // The property focusblocker is available for an external module to
260 // put a function on which takes a buffer as its argument and returns
261 // true to block a focus event, or false to let normal processing
262 // occur. Having this one property explicitly handled by the buffer
263 // class allows for otherwise modular focus-blockers.
266 // icon is a string url of an icon to use for this buffer. Setting it
267 // causes buffer_icon_change_hook to be run.
269 get icon () this._icon,
271 if (this._icon != x) {
273 buffer_icon_change_hook.run(this);
279 set_default_message: function (str) {
280 this.default_message = str;
281 if (this == this.window.buffers.current)
282 this.window.minibuffer.set_default_message(str);
285 constructors_running: 0,
287 constructor_begin: function () {
288 this.constructors_running++;
291 constructor_end: function () {
292 if (--this.constructors_running == 0) {
293 create_buffer_hook.run(this);
294 this.set_input_mode();
299 destroy: function () {
301 this.web_navigation.sessionHistory.removeSHistoryListener(this);
302 this.point_history = null;
305 this.saved_focused_frame = null;
306 this.saved_focused_element = null;
307 // prevent modalities from accessing dead browser
308 this.modalities = [];
311 set_input_mode: function () {
312 if (this != this.window.buffers.current)
315 this.modalities.map(function (m) m(this), this);
316 set_input_mode_hook.run(this);
319 override_keymaps: function (keymaps) {
321 this.keymaps = keymaps;
322 this.set_input_mode = function () {
323 set_input_mode_hook.run(this);
326 delete this.set_input_mode;
327 this.set_input_mode();
330 /* Browser accessors */
331 get top_frame () { return this.browser.contentWindow; },
332 get document () { return this.browser.contentDocument; },
333 get web_navigation () { return this.browser.webNavigation; },
334 get doc_shell () { return this.browser.docShell; },
335 get markup_document_viewer () { return this.browser.markupDocumentViewer; },
336 get current_uri () { return this.browser.currentURI; },
338 is_child_element: function (element) {
339 return (element && this.is_child_frame(element.ownerDocument.defaultView));
342 is_child_frame: function (frame) {
343 return (frame && frame.top == this.top_frame);
346 // This method is like focused_frame, except that if no content
347 // frame actually has focus, this returns null.
348 get focused_frame_or_null () {
349 var frame = this.window.document.commandDispatcher.focusedWindow;
350 if (this.is_child_frame(frame))
355 get focused_frame () {
356 var frame = this.window.document.commandDispatcher.focusedWindow;
357 if (this.is_child_frame(frame))
359 return this.top_frame;
362 get focused_element () {
363 var element = this.window.document.commandDispatcher.focusedElement;
364 if (this.is_child_element(element))
369 get focused_selection_controller () {
370 return this.focused_frame
371 .QueryInterface(Ci.nsIInterfaceRequestor)
372 .getInterface(Ci.nsIWebNavigation)
373 .QueryInterface(Ci.nsIInterfaceRequestor)
374 .getInterface(Ci.nsISelectionDisplay)
375 .QueryInterface(Ci.nsISelectionController);
378 do_command: function (command) {
379 function attempt_command (element, command) {
381 if (element.controllers
382 && (controller = element.controllers.getControllerForCommand(command)) != null
383 && controller.isCommandEnabled(command))
385 controller.doCommand(command);
391 var element = this.focused_element;
392 if (element && attempt_command(element, command))
394 var win = this.focused_frame;
396 if (attempt_command(win, command))
398 if (!win.parent || win == win.parent)
404 // nsISHistoryListener interface
408 return this.point_history[this.point_history.index]
409 || new point_state();
411 point_update: function () {
413 this.window.point.setAttribute("top", p.top);
414 this.window.point.setAttribute("left", p.left);
415 this.window.point.style.width = p.width + "px";
416 this.window.point.style.height = p.height + "px";
418 OnHistoryNewEntry: function (uri) {
419 dumpln("point_history_listener OnHistoryNewEntry");
420 this.point_history.push(new point_state());
421 this.point_history.index++;
424 OnHistoryGoBack: function (uri) {
425 dumpln("point_history_listener OnHistoryGoBack");
426 this.point_history.index--;
430 OnHistoryGoForward: function (uri) {
431 dumpln("point_history_listener OnHistoryGoForward");
432 this.point_history.index++;
436 OnHistoryReload: function (uri, reload_flags) {
437 dumpln("point_history_listener OnHistoryReload");
440 OnHistoryGotoIndex: function (index, uri) {
441 dumpln("point_history_listener OnHistoryGotoIndex");
442 this.point_history.index = index;
446 OnHistoryPurge: function (num_entries) {
447 dumpln("point_history_listener OnHistoryPurge");
448 this.point_history.splice(0, num_entries);
449 this.point_history.index -= num_entries;
454 function with_current_buffer (buffer, callback) {
455 return callback(new interactive_context(buffer));
458 function check_buffer (obj, type) {
459 if (!(obj instanceof type))
460 throw interactive_error("Buffer has invalid type.");
462 throw interactive_error("Buffer has already been killed.");
466 function caret_enabled (buffer) {
467 return buffer.browser.getAttribute('showcaret');
470 function clear_selection (buffer) {
471 let sel_ctrl = buffer.focused_selection_controller;
473 let sel = sel_ctrl.getSelection(sel_ctrl.SELECTION_NORMAL);
474 if (caret_enabled(buffer)) {
476 sel.collapseToStart();
478 sel.removeAllRanges();
484 function buffer_container (window, create_initial_buffer) {
485 this.window = window;
486 this.container = window.document.getElementById("buffer-container");
487 this.buffer_list = [];
488 this.buffer_history = [];
489 window.buffers = this;
490 create_initial_buffer(window);
492 buffer_container.prototype = {
493 constructor: buffer_container,
494 toString: function () "#<buffer_container>",
496 insert: function (buffer, position, opener) {
497 var i = this.index_of(opener);
498 if (position == null) {
500 position = new_buffer_position;
502 position = new_buffer_with_opener_position;
505 i = this.selected_index || 0;
507 if (position instanceof Function)
508 var p = position(this, buffer, i);
511 this.buffer_list.splice(p, 0, buffer);
513 this.buffer_list.splice(0, 0, buffer);
514 dumpln("Error inserting buffer, inserted at 0.");
520 return this.container.selectedPanel.conkeror_buffer_object;
523 set current (buffer) {
524 var old_value = this.current;
525 if (old_value == buffer)
528 this.buffer_history.splice(this.buffer_history.indexOf(buffer), 1);
529 this.buffer_history.unshift(buffer);
531 this._switch_away_from(this.current);
532 this._switch_to(buffer);
535 select_buffer_hook.run(buffer);
538 _switch_away_from: function (old_value) {
540 old_value.saved_focused_frame = old_value.focused_frame;
541 old_value.saved_focused_element = old_value.focused_element;
543 if ('isActive' in old_value.browser.docShell)
544 old_value.browser.docShell.isActive = false;
545 old_value.browser.setAttribute("type", "content");
548 _switch_to: function (buffer) {
549 // Select new buffer in the XUL deck
550 this.container.selectedPanel = buffer.element;
552 buffer.browser.setAttribute("type", "content-primary");
553 if ('isActive' in buffer.browser.docShell)
554 buffer.browser.docShell.isActive = true;
557 * This next focus call seems to be needed to avoid focus
558 * somehow getting lost (and the keypress handler therefore
559 * not getting called at all) when killing buffers.
563 // Restore focus state
564 buffer.browser.focus();
565 if (buffer.saved_focused_element)
566 set_focus_no_scroll(this.window, buffer.saved_focused_element);
567 else if (buffer.saved_focused_frame)
568 set_focus_no_scroll(this.window, buffer.saved_focused_frame);
570 buffer.saved_focused_element = null;
571 buffer.saved_focused_frame = null;
573 buffer.point_update();
575 buffer.set_input_mode();
577 this.window.minibuffer.set_default_message(buffer.default_message);
581 return this.buffer_list.length;
584 get_buffer: function (index) {
585 if (index >= 0 && index < this.count)
586 return this.buffer_list[index]
590 get selected_index () {
591 var nodes = this.buffer_list;
592 var count = nodes.length;
593 for (var i = 0; i < count; ++i)
594 if (nodes[i] == this.container.selectedPanel.conkeror_buffer_object)
599 index_of: function (b) {
600 var nodes = this.buffer_list;
601 var count = nodes.length;
602 for (var i = 0; i < count; ++i)
608 get unique_name_list () {
609 var existing_names = {};
611 this.for_each(function(b) {
612 var base_name = b.name;
613 var name = base_name;
615 while (existing_names[name]) {
617 name = base_name + "<" + index + ">";
619 existing_names[name] = true;
620 bufs.push([name, b]);
625 kill_buffer: function (b) {
628 var count = this.count;
631 var new_buffer = this.buffer_history[0];
633 if (b == new_buffer) {
634 new_buffer = this.buffer_history[1];
637 this._switch_away_from(this.current);
638 // The removeChild call below may trigger events in progress
639 // listeners. This call to `destroy' gives buffer subclasses a
640 // chance to remove such listeners, so that they cannot try to
641 // perform UI actions based upon a xul:browser that no longer
643 var element = b.element;
645 this.container.removeChild(element);
646 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
647 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
648 this._switch_to(new_buffer);
650 select_buffer_hook.run(new_buffer);
651 this.buffer_history.splice(this.buffer_history.indexOf(new_buffer), 1);
652 this.buffer_history.unshift(new_buffer);
654 kill_buffer_hook.run(b);
658 bury_buffer: function (b) {
659 var new_buffer = this.buffer_history[0];
661 new_buffer = this.buffer_history[1];
663 throw interactive_error("No other buffer");
664 if (bury_buffer_position != null) {
665 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
666 this.insert(b, bury_buffer_position, new_buffer);
668 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
669 this.buffer_history.push(b);
670 this.current = new_buffer;
671 if (bury_buffer_position != null)
672 move_buffer_hook.run(b);
676 unbury_buffer: function (b) {
677 var c = this.current;
678 if (bury_buffer_position != null) {
679 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
680 this.buffer_list.splice(this.buffer_list.indexOf(c), 0, b);
682 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
683 this.buffer_history.unshift(b);
685 if (bury_buffer_position != null)
686 move_buffer_hook.run(b);
690 for_each: function (f) {
691 var count = this.count;
692 for (var i = 0; i < count; ++i)
693 f(this.get_buffer(i));
697 function buffer_initialize_window_early (window) {
699 * Use content_buffer by default to handle an unusual case where
700 * browser.chromeURI is used perhaps. In general this default
701 * should not be needed.
703 var create_initial_buffer =
704 window.args.initial_buffer_creator || buffer_creator(content_buffer);
705 new buffer_container(window, create_initial_buffer);
708 add_hook("window_initialize_early_hook", buffer_initialize_window_early);
712 * initialize_first_buffer_type is a workaround for a XULRunner bug that
713 * first appeared in version 2.0, manifested as missing scrollbars in the
714 * first buffer of any window. It only affects content-primary browsers,
715 * and the workaround is to initialize the browser as type "content" then
716 * change it to content-primary after a delay.
718 function initialize_first_buffer_type (window) {
719 window.buffers.current.browser.setAttribute("type", "content-primary");
722 add_hook("window_initialize_late_hook", initialize_first_buffer_type);
725 define_buffer_local_hook("buffer_kill_before_hook", RUN_HOOK_UNTIL_FAILURE);
726 function buffer_before_window_close (window) {
727 var bs = window.buffers;
728 var count = bs.count;
729 for (let i = 0; i < count; ++i) {
730 if (!buffer_kill_before_hook.run(bs.get_buffer(i)))
735 add_hook("window_before_close_hook", buffer_before_window_close);
737 function buffer_window_close_handler (window) {
738 var bs = window.buffers;
739 var count = bs.count;
740 for (let i = 0; i < count; ++i) {
741 let b = bs.get_buffer(i);
745 add_hook("window_close_hook", buffer_window_close_handler);
747 /* open/follow targets */
748 const OPEN_CURRENT_BUFFER = 0; // only valid for open if the current
749 // buffer is a content_buffer.
750 const OPEN_NEW_BUFFER = 1;
751 const OPEN_NEW_BUFFER_BACKGROUND = 2;
752 const OPEN_NEW_WINDOW = 3;
754 const FOLLOW_DEFAULT = 4; // for open, implies OPEN_CURRENT_BUFFER
755 const FOLLOW_CURRENT_FRAME = 5; // for open, implies OPEN_CURRENT_BUFFER
757 var TARGET_PROMPTS = [" in current buffer",
759 " in new buffer (background)",
762 " in current frame"];
764 var TARGET_NAMES = ["current buffer",
766 "new buffer (background)",
772 function create_buffer (window, creator, target) {
774 case OPEN_NEW_BUFFER:
775 window.buffers.current = creator(window, null);
777 case OPEN_NEW_BUFFER_BACKGROUND:
778 creator(window, null);
780 case OPEN_NEW_WINDOW:
781 make_window(creator);
784 throw new Error("invalid target");
788 let (queued_buffer_creators = null) {
789 function create_buffer_in_current_window (creator, target, focus_existing) {
790 function process_queued_buffer_creators (window) {
791 for (var i = 0; i < queued_buffer_creators.length; ++i) {
792 var x = queued_buffer_creators[i];
793 create_buffer(window, x[0], x[1]);
795 queued_buffer_creators = null;
798 if (target == OPEN_NEW_WINDOW)
799 throw new Error("invalid target");
800 var window = get_recent_conkeror_window();
804 create_buffer(window, creator, target);
805 } else if (queued_buffer_creators != null) {
806 queued_buffer_creators.push([creator,target]);
808 queued_buffer_creators = [];
809 window = make_window(creator);
810 add_hook.call(window, "window_initialize_late_hook", process_queued_buffer_creators);
819 define_variable("read_buffer_show_icons", false,
820 "Boolean which says whether read_buffer should show buffer "+
821 "icons in the completions list.\nNote, setting this variable "+
822 "alone does not cause favicons or other kinds of icons to be "+
823 "fetched. For that, load the `favicon' (or similar other) "+
826 minibuffer_auto_complete_preferences["buffer"] = true;
827 define_keywords("$buffers", "$default");
828 minibuffer.prototype.read_buffer = function () {
829 var window = this.window;
830 keywords(arguments, $prompt = "Buffer:",
831 $buffers = function (visitor) window.buffers.for_each(visitor),
832 $default = window.buffers.current,
833 $history = "buffer");
834 var completer = all_word_completer(
835 $completions = arguments.$buffers,
836 $get_string = function (x) x.description,
837 $get_description = function (x) x.title,
838 $get_icon = (read_buffer_show_icons ?
839 function (x) x.icon : null));
840 var result = yield this.read(
841 $keymap = read_buffer_keymap,
842 $prompt = arguments.$prompt,
843 $history = arguments.$history,
844 $completer = completer,
845 $enable_icons = read_buffer_show_icons,
846 $match_required = true,
847 $auto_complete = "buffer",
848 $auto_complete_initial = true,
849 $auto_complete_delay = 0,
850 $default_completion = arguments.$default);
851 yield co_return(result);
855 function buffer_move_forward (window, count) {
856 var buffers = window.buffers;
857 var index = buffers.selected_index;
858 var buffer = buffers.current
859 var total = buffers.count;
862 var new_index = (index + count) % total;
863 if (new_index == index)
867 buffers.buffer_list.splice(index, 1);
868 buffers.buffer_list.splice(new_index, 0, buffer);
869 move_buffer_hook.run(buffer);
871 interactive("buffer-move-forward",
872 "Move the current buffer forward in the buffer order.",
873 function (I) { buffer_move_forward(I.window, I.p); });
875 interactive("buffer-move-backward",
876 "Move the current buffer backward in the buffer order.",
877 function (I) { buffer_move_forward(I.window, -I.p); });
880 function buffer_next (window, count) {
881 var index = window.buffers.selected_index;
882 var total = window.buffers.count;
884 throw new interactive_error("No other buffer");
885 index = (index + count) % total;
888 window.buffers.current = window.buffers.get_buffer(index);
890 interactive("buffer-next",
891 "Switch to the next buffer.",
892 function (I) { buffer_next(I.window, I.p); });
893 interactive("buffer-previous",
894 "Switch to the previous buffer.",
895 function (I) { buffer_next(I.window, -I.p); });
897 function switch_to_buffer (window, buffer) {
898 if (buffer && !buffer.dead)
899 window.buffers.current = buffer;
901 interactive("switch-to-buffer",
902 "Prompt for a buffer and switch to it.",
906 (yield I.minibuffer.read_buffer(
907 $prompt = "Switch to buffer:",
908 $default = (I.window.buffers.count > 1 ?
909 I.window.buffers.buffer_history[1] :
913 define_variable("can_kill_last_buffer", true,
914 "When true, kill-buffer can kill the last buffer in a window, "+
915 "and close the window.");
917 function kill_other_buffers (buffer) {
920 var bs = buffer.window.buffers;
922 while ((b = bs.get_buffer(0)) != buffer)
924 var count = bs.count;
926 bs.kill_buffer(bs.get_buffer(1));
928 interactive("kill-other-buffers",
929 "Kill all buffers except current one.\n",
930 function (I) { kill_other_buffers(I.buffer); });
933 function kill_buffer (buffer, force) {
936 var buffers = buffer.window.buffers;
937 if (buffers.count == 1 && buffer == buffers.current) {
938 if (can_kill_last_buffer || force) {
939 delete_window(buffer.window);
942 throw interactive_error("Can't kill last buffer.");
944 buffers.kill_buffer(buffer);
946 interactive("kill-buffer",
947 "Kill a buffer specified in the minibuffer.\n" +
948 "If `can_kill_last_buffer' is set to true, an attempt to kill the "+
949 "last remaining buffer in a window will cause the window to be closed.",
951 kill_buffer((yield I.minibuffer.read_buffer($prompt = "Kill buffer:")));
954 interactive("kill-current-buffer",
955 "Kill the current buffer.\n" +
956 "If `can_kill_last_buffer' is set to true, an attempt to kill the "+
957 "last remaining buffer in a window will cause the window to be closed.",
958 function (I) { kill_buffer(I.buffer); });
960 interactive("read-buffer-kill-buffer",
961 "Kill the current selected buffer in the completions list "+
962 "in a read buffer minibuffer interaction.",
964 var s = I.window.minibuffer.current_state;
965 var i = s.selected_completion_index;
966 var c = s.completions;
969 kill_buffer(c.get_value(i));
970 s.completer.refresh();
971 s.handle_input(I.window.minibuffer);
974 interactive("bury-buffer",
975 "Bury the current buffer.\nPut the current buffer at the end of " +
976 "the buffer list, so that it is the least likely buffer to be " +
977 "selected by `switch-to-buffer'.",
978 function (I) { I.window.buffers.bury_buffer(I.buffer); });
980 interactive("unbury-buffer",
981 "Unbury the buffer lowest in the buffer-history list.\n"+
982 "With universal argument, prompt for a buffer. When "+
983 "`bury_buffer_position` is non-null, move the buffer "+
984 "to the current position in the buffer list.",
986 var buffers = I.window.buffers;
987 if (I.prefix_argument)
988 var b = yield I.minibuffer.read_buffer(
989 $prompt = "Switch to buffer:",
990 $buffers = function (visitor) {
991 var count = buffers.count;
992 for (var i = count - 1; i >= 0; --i)
993 visitor(buffers.buffer_history[i]);
995 $default = buffers.buffer_history[buffers.count - 1]);
997 b = buffers.buffer_history[buffers.count - 1];
998 buffers.unbury_buffer(b);
1001 function change_directory (buffer, dir) {
1002 if (buffer.page != null)
1003 delete buffer.page.local.cwd;
1004 buffer.local.cwd = make_file(dir);
1006 interactive("change-directory",
1007 "Change the current directory of the selected buffer.",
1011 (yield I.minibuffer.read_existing_directory_path(
1012 $prompt = "Change to directory:",
1013 $initial_value = make_file(I.local.cwd).path)));
1016 interactive("shell-command", null,
1018 var cwd = I.local.cwd;
1019 var cmd = (yield I.minibuffer.read_shell_command($cwd = cwd));
1020 yield shell_command(cmd, $cwd = cwd);
1025 * selection_is_embed_p is used to test whether the unfocus command can
1026 * unfocus an element, even though there is a selection. This happens
1027 * when the focused element is an html:embed.
1029 function selection_is_embed_p (sel, focused_element) {
1030 if (sel.rangeCount == 1) {
1032 var r = sel.getRangeAt(0);
1033 var a = r.startContainer.childNodes[r.startOffset];
1034 if ((a instanceof Ci.nsIDOMHTMLEmbedElement ||
1035 a instanceof Ci.nsIDOMHTMLObjectElement) &&
1036 a == focused_element)
1046 * unfocus is a high-level command for unfocusing hyperlinks, inputs,
1047 * frames, iframes, plugins, and also clearing the selection.
1049 define_buffer_local_hook("unfocus_hook");
1050 function unfocus (window, buffer) {
1051 // 1. if there is a selection, clear it.
1052 var selc = buffer.focused_selection_controller;
1054 var sel = selc.getSelection(selc.SELECTION_NORMAL);
1055 var active = ! sel.isCollapsed;
1056 var embed_p = selection_is_embed_p(sel, buffer.focused_element);
1057 clear_selection(buffer);
1058 if (active && !embed_p) {
1059 window.minibuffer.message("cleared selection");
1063 // 2. if there is a focused element, unfocus it.
1064 if (buffer.focused_element) {
1065 buffer.focused_element.blur();
1066 // if an element in a detached fragment has focus, blur() will
1067 // not work, and we need to take more drastic measures. the
1068 // action taken was found through experiment, so it is possibly
1069 // not the most concise way to unfocus such an element.
1070 if (buffer.focused_element) {
1071 buffer.element.focus();
1072 buffer.top_frame.focus();
1074 window.minibuffer.message("unfocused element");
1077 // 3. if an iframe has focus, we must blur it.
1078 if (buffer.focused_frame_or_null &&
1079 buffer.focused_frame_or_null.frameElement)
1081 buffer.focused_frame_or_null.frameElement.blur();
1083 // 4. return focus to top-frame from subframes and plugins.
1084 buffer.top_frame.focus();
1085 buffer.top_frame.focus(); // needed to get focus back from plugins
1086 window.minibuffer.message("refocused top frame");
1087 // give page-modes an opportunity to set focus specially
1088 unfocus_hook.run(buffer);
1090 interactive("unfocus",
1091 "Unfocus is a high-level command for unfocusing hyperlinks, inputs, "+
1092 "frames, iframes, plugins, and also for clearing the selection.\n"+
1093 "The action that it takes is based on precedence. If there is a "+
1094 "focused hyperlink or input, it will unfocus that. Otherwise, if "+
1095 "there is a selection, it will clear the selection. Otherwise, it "+
1096 "will return focus to the top frame from a focused frame, iframe, "+
1097 "or plugin. In the case of plugins, since they steal keyboard "+
1098 "control away from Conkeror, the normal way to unfocus them is "+
1099 "to use command-line remoting externally: conkeror -batch -f "+
1100 "unfocus. Page-modes also have an opportunity to alter the default"+
1101 "focus via the hook, `focus_hook'.",
1103 unfocus(I.window, I.buffer);
1107 function for_each_buffer (f) {
1108 for_each_window(function (w) { w.buffers.for_each(f); });
1116 define_buffer_local_hook("buffer_mode_change_hook");
1117 define_current_buffer_hook("current_buffer_mode_change_hook", "buffer_mode_change_hook");
1119 define_keywords("$display_name", "$doc");
1120 function buffer_mode (name, enable, disable) {
1121 keywords(arguments);
1122 this.name = name.replace("-","_","g");
1123 this.hyphen_name = name.replace("_","-","g");
1125 this._enable = enable;
1127 this._disable = disable;
1128 this.display_name = arguments.$display_name;
1129 this.doc = arguments.$doc;
1130 this.enable_hook = this.name + "_enable_hook";
1131 this.disable_hook = this.name + "_disable_hook";
1133 buffer_mode.prototype = {
1134 constructor: buffer_mode,
1142 enable: function (buffer) {
1145 this._enable(buffer);
1147 buffer.enabled_modes.push(this.name);
1148 if (conkeror[this.enable_hook])
1149 conkeror[this.enable_hook].run(buffer);
1150 buffer_mode_change_hook.run(buffer);
1153 disable: function (buffer) {
1156 this._disable(buffer);
1158 var i = buffer.enabled_modes.indexOf(this.name);
1160 buffer.enabled_modes.splice(i, 1);
1161 if (conkeror[this.disable_hook])
1162 conkeror[this.disable_hook].run(buffer);
1163 buffer_mode_change_hook.run(buffer);
1167 define_keywords("$constructor");
1168 function define_buffer_mode (name, enable, disable) {
1169 keywords(arguments, $constructor = buffer_mode, $doc = null);
1170 var constructor = arguments.$constructor;
1171 var m = new constructor(name, enable, disable, forward_keywords(arguments));
1172 name = m.name; // normalized
1174 define_buffer_local_hook(m.enable_hook);
1175 define_buffer_local_hook(m.disable_hook);
1176 interactive(m.hyphen_name,
1179 var enabledp = (I.buffer.enabled_modes.indexOf(name) > -1);
1181 m.disable(I.buffer);
1184 I.minibuffer.message(m.hyphen_name + (enabledp ? " disabled" : " enabled"));
1187 ignore_function_for_get_caller_source_code_reference("define_buffer_mode");
1191 * Mode Display in Minibuffer
1194 function minibuffer_mode_indicator (window) {
1195 this.window = window;
1196 var element = create_XUL(window, "label");
1197 element.setAttribute("id", "minibuffer-mode-indicator");
1198 element.setAttribute("class", "mode-text-widget");
1199 window.document.getElementById("minibuffer").appendChild(element);
1200 this.element = element;
1201 this.hook_function = method_caller(this, this.update);
1202 add_hook.call(window, "select_buffer_hook", this.hook_function);
1203 add_hook.call(window, "current_buffer_mode_change_hook", this.hook_function);
1206 minibuffer_mode_indicator.prototype = {
1207 constructor: minibuffer_mode_indicator,
1210 hook_function: null,
1211 update: function () {
1212 var buffer = this.window.buffers.current;
1213 var str = buffer.enabled_modes.map(
1215 return (conkeror[x].display_name || null);
1216 }).filter(function (x) x != null).join(" ");
1217 this.element.value = str;
1219 uninstall: function () {
1220 remove_hook.call(this.window, "select_buffer_hook", this.hook_function);
1221 remove_hook.call(this.window, "current_buffer_mode_change_hook", this.hook_function);
1222 this.element.parentNode.removeChild(this.element);
1225 define_global_window_mode("minibuffer_mode_indicator", "window_initialize_hook");
1226 minibuffer_mode_indicator_mode(true);
1230 * minibuffer-keymaps-display
1232 function minibuffer_keymaps_display_update (buffer) {
1233 var element = buffer.window.document
1234 .getElementById("keymaps-display");
1236 var str = buffer.keymaps.reduce(
1237 function (acc, kmap) {
1238 if (kmap.display_name)
1239 acc.push(kmap.display_name);
1242 if (element.value != str)
1243 element.value = str;
1247 function minibuffer_keymaps_display_initialize (window) {
1248 var element = create_XUL(window, "label");
1249 element.setAttribute("id", "keymaps-display");
1250 element.setAttribute("class", "mode-text-widget");
1251 element.setAttribute("value", "");
1252 var mb = window.document.getElementById("minibuffer");
1253 mb.appendChild(element);
1256 define_global_mode("minibuffer_keymaps_display_mode",
1257 function enable () {
1258 add_hook("window_initialize_hook", minibuffer_keymaps_display_initialize);
1259 add_hook("set_input_mode_hook", minibuffer_keymaps_display_update);
1260 for_each_window(minibuffer_keymaps_display_initialize);
1262 function disable () {
1263 remove_hook("window_initialize_hook", minibuffer_keymaps_display_initialize);
1264 remove_hook("set_input_mode_hook", minibuffer_keymaps_display_update);
1265 for_each_window(function (w) {
1266 var element = w.document
1267 .getElementById("keymaps-display");
1269 element.parentNode.removeChild(element);
1273 minibuffer_keymaps_display_mode(true);
1277 * minibuffer-keymaps-highlight
1279 function minibuffer_keymaps_highlight_update (buffer) {
1280 var mb = buffer.window.document.getElementById("minibuffer");
1281 if (buffer.keymaps.some(function (k) k.notify))
1282 dom_add_class(mb, "highlight");
1284 dom_remove_class(mb, "highlight");
1287 define_global_mode("minibuffer_keymaps_highlight_mode",
1288 function enable () {
1289 add_hook("set_input_mode_hook", minibuffer_keymaps_highlight_update);
1291 function disable () {
1292 remove_hook("set_input_mode_hook", minibuffer_keymaps_highlight_update);
1293 for_each_window(function (w) {
1294 var mb = w.document.getElementById("minibuffer");
1296 dom_remove_class("highlight");
1300 minibuffer_keymaps_highlight_mode(true);