content/browser/plugin_process_host_mac.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <Carbon/Carbon.h>
   6
   7 #include "build/build_config.h"
   8
   9 #include <vector>
  10
  11 #include "base/bind.h"
  12 #include "base/logging.h"
  13 #include "base/mac/mac_util.h"
  14 #include "base/process_util.h"
  15 #include "content/browser/browser_child_process_host_impl.h"
  16 #include "content/browser/plugin_process_host.h"
  17 #include "content/common/plugin_messages.h"
  18 #include "content/public/browser/browser_thread.h"
  19 #include "content/public/browser/child_process_data.h"
  20 #include "ui/gfx/rect.h"
  21
  22 using content::BrowserThread;
  23
  24 void PluginProcessHost::OnPluginSelectWindow(uint32 window_id,
  25                                              gfx::Rect window_rect,
  26                                              bool modal) {
  27   plugin_visible_windows_set_.insert(window_id);
  28   if (modal)
  29     plugin_modal_windows_set_.insert(window_id);
  30 }
  31
  32 void PluginProcessHost::OnPluginShowWindow(uint32 window_id,
  33                                            gfx::Rect window_rect,
  34                                            bool modal) {
  35   plugin_visible_windows_set_.insert(window_id);
  36   if (modal)
  37     plugin_modal_windows_set_.insert(window_id);
  38   CGRect window_bounds = {
  39     { window_rect.x(), window_rect.y() },
  40     { window_rect.width(), window_rect.height() }
  41   };
  42   CGRect main_display_bounds = CGDisplayBounds(CGMainDisplayID());
  43   if (CGRectEqualToRect(window_bounds, main_display_bounds) &&
  44       (plugin_fullscreen_windows_set_.find(window_id) ==
  45        plugin_fullscreen_windows_set_.end())) {
  46     plugin_fullscreen_windows_set_.insert(window_id);
  47     // If the plugin has just shown a window that's the same dimensions as
  48     // the main display, hide the menubar so that it has the whole screen.
  49     // (but only if we haven't already seen this fullscreen window, since
  50     // otherwise our refcounting can get skewed).
  51     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  52                             base::Bind(base::mac::RequestFullScreen,
  53                                        base::mac::kFullScreenModeHideAll));
  54   }
  55 }
  56
  57 // Must be called on the UI thread.
  58 // If plugin_pid is -1, the browser will be the active process on return,
  59 // otherwise that process will be given focus back before this function returns.
  60 static void ReleasePluginFullScreen(pid_t plugin_pid) {
  61   // Releasing full screen only works if we are the frontmost process; grab
  62   // focus, but give it back to the plugin process if requested.
  63   base::mac::ActivateProcess(base::GetCurrentProcId());
  64   base::mac::ReleaseFullScreen(base::mac::kFullScreenModeHideAll);
  65   if (plugin_pid != -1) {
  66     base::mac::ActivateProcess(plugin_pid);
  67   }
  68 }
  69
  70 void PluginProcessHost::OnPluginHideWindow(uint32 window_id,
  71                                            gfx::Rect window_rect) {
  72   bool had_windows = !plugin_visible_windows_set_.empty();
  73   plugin_visible_windows_set_.erase(window_id);
  74   bool browser_needs_activation = had_windows &&
  75       plugin_visible_windows_set_.empty();
  76
  77   plugin_modal_windows_set_.erase(window_id);
  78   if (plugin_fullscreen_windows_set_.find(window_id) !=
  79       plugin_fullscreen_windows_set_.end()) {
  80     plugin_fullscreen_windows_set_.erase(window_id);
  81     pid_t plugin_pid =
  82         browser_needs_activation ? -1 : process_->GetData().handle;
  83     browser_needs_activation = false;
  84     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  85                             base::Bind(ReleasePluginFullScreen, plugin_pid));
  86   }
  87
  88   if (browser_needs_activation) {
  89     BrowserThread::PostTask(
  90         BrowserThread::UI, FROM_HERE,
  91         base::Bind(base::mac::ActivateProcess, base::GetCurrentProcId()));
  92   }
  93 }
  94
  95 void PluginProcessHost::OnAppActivation() {
  96   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  97
  98   // If our plugin process has any modal windows up, we need to bring it forward
  99   // so that they act more like an in-process modal window would.
 100   if (!plugin_modal_windows_set_.empty()) {
 101     BrowserThread::PostTask(
 102         BrowserThread::UI, FROM_HERE,
 103         base::Bind(base::mac::ActivateProcess, process_->GetData().handle));
 104   }
 105 }
 106
 107 void PluginProcessHost::OnPluginSetCursorVisibility(bool visible) {
 108   if (plugin_cursor_visible_ != visible) {
 109     plugin_cursor_visible_ = visible;
 110     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
 111                             base::Bind(base::mac::SetCursorVisibility,
 112                                        visible));
 113   }
 114 }