It is time.

ui/views/controls/link.cc

-// Copyright (c) 2012 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/controls/link.h"
-
-#include "build/build_config.h"
-
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ui/accessibility/ax_view_state.h"
-#include "ui/base/cursor/cursor.h"
-#include "ui/events/event.h"
-#include "ui/events/keycodes/keyboard_codes.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/color_utils.h"
-#include "ui/gfx/font_list.h"
-#include "ui/views/controls/link_listener.h"
-#include "ui/views/native_cursor.h"
-
-namespace views {
-
-const char Link::kViewClassName[] = "Link";
-
-Link::Link() : Label(base::string16()) {
-  Init();
-}
-
-Link::Link(const base::string16& title) : Label(title) {
-  Init();
-}
-
-Link::~Link() {
-}
-
-SkColor Link::GetDefaultEnabledColor() {
-#if defined(OS_WIN)
-  return color_utils::GetSysSkColor(COLOR_HOTLIGHT);
-#else
-  return SkColorSetRGB(0, 51, 153);
-#endif
-}
-
-const char* Link::GetClassName() const {
-  return kViewClassName;
-}
-
-gfx::NativeCursor Link::GetCursor(const ui::MouseEvent& event) {
-  if (!enabled())
-    return gfx::kNullCursor;
-  return GetNativeHandCursor();
-}
-
-bool Link::CanProcessEventsWithinSubtree() const {
-  // Links need to be able to accept events (e.g., clicking) even though
-  // in general Labels do not.
-  return View::CanProcessEventsWithinSubtree();
-}
-
-bool Link::OnMousePressed(const ui::MouseEvent& event) {
-  if (!enabled() ||
-      (!event.IsLeftMouseButton() && !event.IsMiddleMouseButton()))
-    return false;
-  SetPressed(true);
-  return true;
-}
-
-bool Link::OnMouseDragged(const ui::MouseEvent& event) {
-  SetPressed(enabled() &&
-             (event.IsLeftMouseButton() || event.IsMiddleMouseButton()) &&
-             HitTestPoint(event.location()));
-  return true;
-}
-
-void Link::OnMouseReleased(const ui::MouseEvent& event) {
-  // Change the highlight first just in case this instance is deleted
-  // while calling the controller
-  OnMouseCaptureLost();
-  if (enabled() &&
-      (event.IsLeftMouseButton() || event.IsMiddleMouseButton()) &&
-      HitTestPoint(event.location())) {
-    // Focus the link on click.
-    RequestFocus();
-
-    if (listener_)
-      listener_->LinkClicked(this, event.flags());
-  }
-}
-
-void Link::OnMouseCaptureLost() {
-  SetPressed(false);
-}
-
-bool Link::OnKeyPressed(const ui::KeyEvent& event) {
-  bool activate = ((event.key_code() == ui::VKEY_SPACE) ||
-                   (event.key_code() == ui::VKEY_RETURN));
-  if (!activate)
-    return false;
-
-  SetPressed(false);
-
-  // Focus the link on key pressed.
-  RequestFocus();
-
-  if (listener_)
-    listener_->LinkClicked(this, event.flags());
-
-  return true;
-}
-
-void Link::OnGestureEvent(ui::GestureEvent* event) {
-  if (!enabled())
-    return;
-
-  if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
-    SetPressed(true);
-  } else if (event->type() == ui::ET_GESTURE_TAP) {
-    RequestFocus();
-    if (listener_)
-      listener_->LinkClicked(this, event->flags());
-  } else {
-    SetPressed(false);
-    return;
-  }
-  event->SetHandled();
-}
-
-bool Link::SkipDefaultKeyEventProcessing(const ui::KeyEvent& event) {
-  // Make sure we don't process space or enter as accelerators.
-  return (event.key_code() == ui::VKEY_SPACE) ||
-      (event.key_code() == ui::VKEY_RETURN);
-}
-
-void Link::GetAccessibleState(ui::AXViewState* state) {
-  Label::GetAccessibleState(state);
-  state->role = ui::AX_ROLE_LINK;
-}
-
-void Link::OnEnabledChanged() {
-  RecalculateFont();
-  View::OnEnabledChanged();
-}
-
-void Link::OnFocus() {
-  Label::OnFocus();
-  // We render differently focused.
-  SchedulePaint();
-}
-
-void Link::OnBlur() {
-  Label::OnBlur();
-  // We render differently focused.
-  SchedulePaint();
-}
-
-void Link::SetFontList(const gfx::FontList& font_list) {
-  Label::SetFontList(font_list);
-  RecalculateFont();
-}
-
-void Link::SetText(const base::string16& text) {
-  Label::SetText(text);
-  // Disable focusability for empty links.  Otherwise Label::GetInsets() will
-  // give them an unconditional 1-px. inset on every side to allow for a focus
-  // border, when in this case we probably wanted zero width.
-  SetFocusable(!text.empty());
-}
-
-void Link::SetEnabledColor(SkColor color) {
-  requested_enabled_color_ = color;
-  if (!pressed_)
-    Label::SetEnabledColor(requested_enabled_color_);
-}
-
-void Link::SetPressedColor(SkColor color) {
-  requested_pressed_color_ = color;
-  if (pressed_)
-    Label::SetEnabledColor(requested_pressed_color_);
-}
-
-void Link::SetUnderline(bool underline) {
-  if (underline_ == underline)
-    return;
-  underline_ = underline;
-  RecalculateFont();
-}
-
-void Link::Init() {
-  listener_ = NULL;
-  pressed_ = false;
-  underline_ = true;
-  SetEnabledColor(GetDefaultEnabledColor());
-#if defined(OS_WIN)
-  SetDisabledColor(color_utils::GetSysSkColor(COLOR_WINDOWTEXT));
-  SetPressedColor(SkColorSetRGB(200, 0, 0));
-#else
-  // TODO(beng): source from theme provider.
-  SetDisabledColor(SK_ColorBLACK);
-  SetPressedColor(SK_ColorRED);
-#endif
-  RecalculateFont();
-
-  // Label::Init() calls SetText(), but if that's being called from Label(), our
-  // SetText() override will not be reached (because the constructed class is
-  // only a Label at the moment, not yet a Link).  So so the set_focusable()
-  // call explicitly here.
-  SetFocusable(!text().empty());
-}
-
-void Link::SetPressed(bool pressed) {
-  if (pressed_ != pressed) {
-    pressed_ = pressed;
-    Label::SetEnabledColor(pressed_ ?
-        requested_pressed_color_ : requested_enabled_color_);
-    RecalculateFont();
-    SchedulePaint();
-  }
-}
-
-void Link::RecalculateFont() {
-  // Underline the link iff it is enabled and |underline_| is true.
-  const int style = font_list().GetFontStyle();
-  const int intended_style = (enabled() && underline_) ?
-      (style | gfx::Font::UNDERLINE) : (style & ~gfx::Font::UNDERLINE);
-  if (style != intended_style)
-    Label::SetFontList(font_list().DeriveWithStyle(intended_style));
-}
-
-}  // namespace views