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