media_controls: Add UI for showing a promo bubble on a control button.

third_party/WebKit/Source/modules/media_controls/MediaControlsImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 33 matching lines @@
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/media/HTMLMediaElementControlsList.h"
 #include "core/html/track/TextTrackContainer.h"
 #include "core/html/track/TextTrackList.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
 #include "modules/media_controls/MediaControlsMediaEventListener.h"
 #include "modules/media_controls/MediaControlsOrientationLockDelegate.h"
 #include "modules/media_controls/MediaControlsRotateToFullscreenDelegate.h"
 #include "modules/media_controls/MediaControlsWindowEventListener.h"
+#include "modules/media_controls/elements/MediaControlButtonPromoElements.h"
 #include "modules/media_controls/elements/MediaControlCastButtonElement.h"
 #include "modules/media_controls/elements/MediaControlCurrentTimeDisplayElement.h"
 #include "modules/media_controls/elements/MediaControlDownloadButtonElement.h"
 #include "modules/media_controls/elements/MediaControlFullscreenButtonElement.h"
 #include "modules/media_controls/elements/MediaControlMuteButtonElement.h"
 #include "modules/media_controls/elements/MediaControlOverflowMenuButtonElement.h"
 #include "modules/media_controls/elements/MediaControlOverflowMenuListElement.h"
 #include "modules/media_controls/elements/MediaControlOverlayEnclosureElement.h"
 #include "modules/media_controls/elements/MediaControlOverlayPlayButtonElement.h"
 #include "modules/media_controls/elements/MediaControlPanelElement.h"
@@ skipping 352 matching lines @@
   panel_->AppendChild(mute_button_);
 
   volume_slider_ = new MediaControlVolumeSliderElement(*this);
   panel_->AppendChild(volume_slider_);
   if (PreferHiddenVolumeControls(GetDocument()))
     volume_slider_->SetIsWanted(false);
 
   fullscreen_button_ = new MediaControlFullscreenButtonElement(*this);
   panel_->AppendChild(fullscreen_button_);
 
+  download_button_container_ = new MediaControlDownloadButtonContainer(*this);
+  panel_->AppendChild(download_button_container_);
+
   download_button_ = new MediaControlDownloadButtonElement(*this);
-  panel_->AppendChild(download_button_);
+  download_button_container_->AppendChild(download_button_);
 
   cast_button_ = new MediaControlCastButtonElement(*this, false);
   panel_->AppendChild(cast_button_);
 
   toggle_closed_captions_button_ =
       new MediaControlToggleClosedCaptionsButtonElement(*this);
   panel_->AppendChild(toggle_closed_captions_button_);
 
   enclosure_->AppendChild(panel_);
 
@@ skipping 20 matching lines @@
       *this, new MediaControlDownloadButtonElement(*this)));
   overflow_list_->AppendChild(mute_button_->CreateOverflowElement(
       *this, new MediaControlMuteButtonElement(*this)));
   overflow_list_->AppendChild(cast_button_->CreateOverflowElement(
       *this, new MediaControlCastButtonElement(*this, false)));
   overflow_list_->AppendChild(
       toggle_closed_captions_button_->CreateOverflowElement(
           *this, new MediaControlToggleClosedCaptionsButtonElement(*this)));
 }
 
+void MediaControlsImpl::CreateDownloadButtonPromoUI() {
+  download_promo_container_ = new MediaControlButtonPromoContainer(
+      *this, kMediaDownloadButtonPromoText,
+      WebLocalizedString::kDownloadButtonPromoText);
+  download_button_container_->AppendChild(download_promo_container_);
+}
+
+void MediaControlsImpl::UpdateDownloadButtonWantedState() {
+  bool should_display = download_button_->ShouldDisplayDownloadButton();
+  download_button_->SetIsWanted(should_display);
+  download_button_container_->SetIsWanted(should_display);
+}
+
 Node::InsertionNotificationRequest MediaControlsImpl::InsertedInto(
     ContainerNode* root) {
   if (!MediaElement().isConnected())
     return HTMLDivElement::InsertedInto(root);
 
   // TODO(mlamouri): we should show the controls instead of having
   // HTMLMediaElement do it.
 
   // m_windowEventListener doesn't need to be re-attached as it's only needed
   // when a menu is visible.
@@ skipping 74 matching lines @@
 
   OnControlsListUpdated();
 }
 
 void MediaControlsImpl::OnControlsListUpdated() {
   BatchedControlUpdate batch(this);
 
   fullscreen_button_->SetIsWanted(ShouldShowFullscreenButton(MediaElement()));
 
   RefreshCastButtonVisibilityWithoutUpdate();
-
-  download_button_->SetIsWanted(
-      download_button_->ShouldDisplayDownloadButton());
+  UpdateDownloadButtonWantedState();
 }
 
 LayoutObject* MediaControlsImpl::PanelLayoutObject() {
   return panel_->GetLayoutObject();
 }
 
 LayoutObject* MediaControlsImpl::ContainerLayoutObject() {
   return GetLayoutObject();
 }
 
@@ skipping 587 matching lines @@
   Invalidate(play_button_);
   Invalidate(overlay_play_button_);
   Invalidate(mute_button_);
   Invalidate(fullscreen_button_);
   Invalidate(download_button_);
   Invalidate(timeline_);
   Invalidate(volume_slider_);
 
   // Update the display state of the download button in case we now have a
   // source or no longer have a source.
-  download_button_->SetIsWanted(
-      download_button_->ShouldDisplayDownloadButton());
+  UpdateDownloadButtonWantedState();
 }
 
 bool MediaControlsImpl::OverflowMenuVisible() {
   return overflow_list_ ? overflow_list_->IsWanted() : false;
 }
 
 void MediaControlsImpl::ToggleOverflowMenu() {
   DCHECK(overflow_list_);
 
   if (!overflow_list_->IsWanted())
@@ skipping 17 matching lines @@
   visitor->Trace(overlay_play_button_);
   visitor->Trace(overlay_enclosure_);
   visitor->Trace(play_button_);
   visitor->Trace(current_time_display_);
   visitor->Trace(timeline_);
   visitor->Trace(mute_button_);
   visitor->Trace(volume_slider_);
   visitor->Trace(toggle_closed_captions_button_);
   visitor->Trace(fullscreen_button_);
   visitor->Trace(download_button_);
+  visitor->Trace(download_button_container_);
+  visitor->Trace(download_promo_container_);
   visitor->Trace(duration_display_);
   visitor->Trace(enclosure_);
   visitor->Trace(text_track_list_);
   visitor->Trace(overflow_menu_);
   visitor->Trace(overflow_list_);
   visitor->Trace(cast_button_);
   visitor->Trace(overlay_cast_button_);
   visitor->Trace(media_event_listener_);
   visitor->Trace(window_event_listener_);
   visitor->Trace(orientation_lock_delegate_);
   visitor->Trace(rotate_to_fullscreen_delegate_);
   MediaControls::Trace(visitor);
   HTMLDivElement::Trace(visitor);
 }
 
 }  // namespace blink