Revert 110949 - views: Move widget/ directory to ui/views.

ui/views/widget/tooltip_manager_gtk.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ui/views/widget/tooltip_manager_gtk.h"
-
-#include "base/logging.h"
-#include "base/utf_string_conversions.h"
-#include "ui/gfx/font.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/focus/focus_manager.h"
-#include "ui/views/widget/native_widget_gtk.h"
-#include "views/view.h"
-
-// WARNING: this implementation is good for a start, but it doesn't give us
-// control of tooltip positioning both on mouse events and when showing from
-// keyboard. We may need to write our own to give us the control we need.
-
-namespace views {
-
-static gfx::Font* LoadDefaultFont() {
-  // Create a tooltip widget and extract the font from it (we have to realize
-  // it to make sure the correct font gets set).
-  GtkWidget* window = gtk_window_new(GTK_WINDOW_POPUP);
-  gtk_widget_set_name(window, "gtk-tooltip");
-  GtkWidget* label = gtk_label_new("");
-  gtk_widget_show(label);
-
-  gtk_container_add(GTK_CONTAINER(window), label);
-  gtk_widget_realize(window);
-
-  GtkStyle* style = gtk_widget_get_style(label);
-  gfx::Font* font = new gfx::Font(style->font_desc);
-
-  gtk_widget_destroy(window);
-
-  return font;
-}
-
-// static
-int TooltipManager::GetTooltipHeight() {
-  // This is only used to position the tooltip, and we don't yet support
-  // positioning the tooltip, it isn't worth trying to implement this.
-  return 0;
-}
-
-// static
-gfx::Font TooltipManager::GetDefaultFont() {
-  static gfx::Font* font = NULL;
-  if (!font)
-    font = LoadDefaultFont();
-
-  return *font;
-}
-
-// static
-int TooltipManager::GetMaxWidth(int x, int y) {
-  gfx::Rect monitor_bounds =
-      gfx::Screen::GetMonitorAreaNearestPoint(gfx::Point(x, y));
-  // GtkLabel (gtk_label_ensure_layout) forces wrapping at this size. We mirror
-  // the size here otherwise tooltips wider than the size used by gtklabel end
-  // up with extraneous empty lines.
-  return monitor_bounds.width() == 0 ? 800 : (monitor_bounds.width() + 1) / 2;
-}
-
-TooltipManagerGtk::TooltipManagerGtk(NativeWidgetGtk* widget)
-    : widget_(widget),
-      keyboard_view_(NULL),
-      tooltip_window_(widget->window_contents()) {
-}
-
-bool TooltipManagerGtk::ShowTooltip(int x, int y, bool for_keyboard,
-                                    GtkTooltip* tooltip) {
-  const View* view = NULL;
-  gfx::Point view_loc;
-  if (keyboard_view_) {
-    view = keyboard_view_;
-    view_loc.SetPoint(view->width() / 2, view->height() / 2);
-  } else if (!for_keyboard) {
-    View* root_view = widget_->GetWidget()->GetRootView();
-    view = root_view->GetEventHandlerForPoint(gfx::Point(x, y));
-    view_loc.SetPoint(x, y);
-    View::ConvertPointFromWidget(view, &view_loc);
-  } else {
-    const FocusManager* focus_manager = widget_->GetWidget()->GetFocusManager();
-    if (focus_manager) {
-      view = focus_manager->GetFocusedView();
-      if (view)
-        view_loc.SetPoint(view->width() / 2, view->height() / 2);
-    }
-  }
-
-  if (!view)
-    return false;
-
-  string16 text;
-  if (!view->GetTooltipText(view_loc, &text))
-    return false;
-
-  // Sets the area of the tooltip. This way if different views in the same
-  // widget have tooltips the tooltip doesn't get stuck at the same location.
-  gfx::Rect vis_bounds = view->GetVisibleBounds();
-  gfx::Point widget_loc(vis_bounds.origin());
-  View::ConvertPointToWidget(view, &widget_loc);
-  GdkRectangle tip_area = { widget_loc.x(), widget_loc.y(),
-                            vis_bounds.width(), vis_bounds.height() };
-  gtk_tooltip_set_tip_area(tooltip, &tip_area);
-
-  int max_width, line_count;
-  gfx::Point screen_loc(x, y);
-  View::ConvertPointToScreen(widget_->GetWidget()->GetRootView(), &screen_loc);
-  TrimTooltipToFit(&text, &max_width, &line_count, screen_loc.x(),
-                   screen_loc.y());
-  tooltip_window_.SetTooltipText(text);
-
-  return true;
-}
-
-void TooltipManagerGtk::UpdateTooltip() {
-  // UpdateTooltip may be invoked after the widget has been destroyed.
-  GtkWidget* widget = widget_->GetNativeView();
-  if (!widget)
-    return;
-
-  GdkDisplay* display = gtk_widget_get_display(widget);
-  if (display)
-    gtk_tooltip_trigger_tooltip_query(display);
-}
-
-void TooltipManagerGtk::TooltipTextChanged(View* view) {
-  UpdateTooltip();
-}
-
-void TooltipManagerGtk::ShowKeyboardTooltip(View* view) {
-  if (view == keyboard_view_)
-    return;  // We're already showing the tip for the specified view.
-
-  // We have to hide the current tooltip, then show again.
-  HideKeyboardTooltip();
-
-  string16 tooltip_text;
-  if (!view->GetTooltipText(gfx::Point(), &tooltip_text))
-    return;  // The view doesn't have a tooltip, nothing to do.
-
-  keyboard_view_ = view;
-  if (!SendShowHelpSignal()) {
-    keyboard_view_ = NULL;
-    return;
-  }
-}
-
-void TooltipManagerGtk::HideKeyboardTooltip() {
-  if (!keyboard_view_)
-    return;
-
-  SendShowHelpSignal();
-  keyboard_view_ = NULL;
-}
-
-bool TooltipManagerGtk::SendShowHelpSignal() {
-  GtkWidget* widget = widget_->window_contents();
-  GType itype = G_TYPE_FROM_INSTANCE(G_OBJECT(widget));
-  guint signal_id;
-  GQuark detail;
-  if (!g_signal_parse_name("show_help", itype, &signal_id, &detail, FALSE)) {
-    NOTREACHED();
-    return false;
-  }
-  gboolean result;
-  g_signal_emit(widget, signal_id, 0, GTK_WIDGET_HELP_TOOLTIP, &result);
-  return true;
-}
-
-}  // namespace views