1// Copyright (c) 2012 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 "ui/views/widget/tooltip_manager_aura.h"
6
7#include "base/logging.h"
8#include "ui/aura/client/screen_position_client.h"
9#include "ui/aura/window_event_dispatcher.h"
10#include "ui/aura/window_tree_host.h"
11#include "ui/base/resource/resource_bundle.h"
12#include "ui/gfx/rect.h"
13#include "ui/gfx/screen.h"
14#include "ui/views/widget/widget.h"
15#include "ui/wm/public/tooltip_client.h"
16
17namespace views {
18
19// static
20int TooltipManager::GetTooltipHeight() {
21  // Not used for linux and chromeos.
22  NOTIMPLEMENTED();
23  return 0;
24}
25
26////////////////////////////////////////////////////////////////////////////////
27// TooltipManagerAura public:
28
29TooltipManagerAura::TooltipManagerAura(Widget* widget) : widget_(widget) {
30  aura::client::SetTooltipText(GetWindow(), &tooltip_text_);
31}
32
33TooltipManagerAura::~TooltipManagerAura() {
34  aura::client::SetTooltipText(GetWindow(), NULL);
35}
36
37// static
38const gfx::FontList& TooltipManagerAura::GetDefaultFontList() {
39  return ui::ResourceBundle::GetSharedInstance().GetFontList(
40      ui::ResourceBundle::BaseFont);
41}
42
43// static
44void TooltipManagerAura::UpdateTooltipManagerForCapture(Widget* source) {
45  if (!source->HasCapture())
46    return;
47
48  aura::Window* root_window = source->GetNativeView()->GetRootWindow();
49  if (!root_window)
50    return;
51
52  gfx::Point screen_loc(
53      root_window->GetHost()->dispatcher()->GetLastMouseLocationInRoot());
54  aura::client::ScreenPositionClient* screen_position_client =
55      aura::client::GetScreenPositionClient(root_window);
56  if (!screen_position_client)
57    return;
58  screen_position_client->ConvertPointToScreen(root_window, &screen_loc);
59  gfx::Screen* screen = gfx::Screen::GetScreenFor(root_window);
60  aura::Window* target = screen->GetWindowAtScreenPoint(screen_loc);
61  if (!target)
62    return;
63  gfx::Point target_loc(screen_loc);
64  screen_position_client =
65      aura::client::GetScreenPositionClient(target->GetRootWindow());
66  if (!screen_position_client)
67    return;
68  screen_position_client->ConvertPointFromScreen(target, &target_loc);
69  target = target->GetEventHandlerForPoint(target_loc);
70  while (target) {
71    Widget* target_widget = Widget::GetWidgetForNativeView(target);
72    if (target_widget == source)
73      return;
74
75    if (target_widget) {
76      if (target_widget->GetTooltipManager())
77        target_widget->GetTooltipManager()->UpdateTooltip();
78      return;
79    }
80    target = target->parent();
81  }
82}
83
84////////////////////////////////////////////////////////////////////////////////
85// TooltipManagerAura, TooltipManager implementation:
86
87const gfx::FontList& TooltipManagerAura::GetFontList() const {
88  return GetDefaultFontList();
89}
90
91void TooltipManagerAura::UpdateTooltip() {
92  aura::Window* root_window = GetWindow()->GetRootWindow();
93  if (aura::client::GetTooltipClient(root_window)) {
94    gfx::Point view_point =
95        root_window->GetHost()->dispatcher()->GetLastMouseLocationInRoot();
96    aura::Window::ConvertPointToTarget(root_window, GetWindow(), &view_point);
97    View* view = GetViewUnderPoint(view_point);
98    UpdateTooltipForTarget(view, view_point, root_window);
99  }
100}
101
102void TooltipManagerAura::TooltipTextChanged(View* view)  {
103  aura::Window* root_window = GetWindow()->GetRootWindow();
104  if (aura::client::GetTooltipClient(root_window)) {
105    gfx::Point view_point =
106        root_window->GetHost()->dispatcher()->GetLastMouseLocationInRoot();
107    aura::Window::ConvertPointToTarget(root_window, GetWindow(), &view_point);
108    View* target = GetViewUnderPoint(view_point);
109    if (target != view)
110      return;
111    UpdateTooltipForTarget(view, view_point, root_window);
112  }
113}
114
115View* TooltipManagerAura::GetViewUnderPoint(const gfx::Point& point) {
116  View* root_view = widget_->GetRootView();
117  if (root_view)
118    return root_view->GetTooltipHandlerForPoint(point);
119  return NULL;
120}
121
122void TooltipManagerAura::UpdateTooltipForTarget(View* target,
123                                                const gfx::Point& point,
124                                                aura::Window* root_window) {
125  if (target) {
126    gfx::Point view_point = point;
127    View::ConvertPointFromWidget(target, &view_point);
128    base::string16 new_tooltip_text;
129    if (!target->GetTooltipText(view_point, &new_tooltip_text))
130      tooltip_text_.clear();
131    else
132      tooltip_text_ = new_tooltip_text;
133  } else {
134    tooltip_text_.clear();
135  }
136
137  aura::client::SetTooltipId(GetWindow(), target);
138
139  aura::client::GetTooltipClient(root_window)->UpdateTooltip(GetWindow());
140}
141
142aura::Window* TooltipManagerAura::GetWindow() {
143  return widget_->GetNativeView();
144}
145
146}  // namespace views.
147