Remove the in-process PDF viewer from pdf/

pdf/button.cc

-// Copyright (c) 2010 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 "pdf/button.h"
-
-#include "base/logging.h"
-#include "pdf/draw_utils.h"
-#include "ppapi/cpp/input_event.h"
-
-namespace chrome_pdf {
-
-Button::Button()
-    : style_(BUTTON_CLICKABLE), state_(BUTTON_NORMAL), is_pressed_(false) {
-}
-
-Button::~Button() {
-}
-
-bool Button::CreateButton(uint32 id,
-                          const pp::Point& origin,
-                          bool visible,
-                          Control::Owner* owner,
-                          ButtonStyle style,
-                          const pp::ImageData& face_normal,
-                          const pp::ImageData& face_highlighted,
-                          const pp::ImageData& face_pressed) {
-  DCHECK(face_normal.size().GetArea());
-  DCHECK(face_normal.size() == face_highlighted.size());
-  DCHECK(face_normal.size() == face_pressed.size());
-
-  pp::Rect rc(origin, face_normal.size());
-  if (!Control::Create(id, rc, visible, owner))
-    return false;
-
-  style_ = style;
-
-  normal_ = face_normal;
-  highlighted_ = face_highlighted;
-  pressed_ = face_pressed;
-
-  return true;
-}
-
-
-void Button::Paint(pp::ImageData* image_data, const pp::Rect& rc) {
-  if (!visible())
-    return;
-
-  pp::Rect draw_rc = rc.Intersect(rect());
-  if (draw_rc.IsEmpty())
-    return;
-
-  pp::Point origin = draw_rc.point();
-  draw_rc.Offset(-rect().x(), -rect().y());
-
-  AlphaBlend(GetCurrentImage(), draw_rc, image_data, origin, transparency());
-}
-
-bool Button::HandleEvent(const pp::InputEvent& event) {
-  if (!visible())
-    return false;
-
-  // Button handles mouse events only.
-  pp::MouseInputEvent mouse_event(event);
-   if (mouse_event.is_null())
-    return false;
-
-  pp::Point pt = mouse_event.GetPosition();
-  if (!rect().Contains(pt) ||
-      event.GetType() == PP_INPUTEVENT_TYPE_MOUSELEAVE) {
-    ChangeState(BUTTON_NORMAL, false);
-    owner()->SetEventCapture(id(), false);
-    return false;
-  }
-
-  owner()->SetCursor(id(), PP_CURSORTYPE_POINTER);
-  owner()->SetEventCapture(id(), true);
-
-  bool handled = true;
-  switch (event.GetType()) {
-    case PP_INPUTEVENT_TYPE_MOUSEMOVE:
-      if (state_ == BUTTON_NORMAL)
-        ChangeState(BUTTON_HIGHLIGHTED, false);
-      break;
-    case PP_INPUTEVENT_TYPE_MOUSEDOWN:
-      if (mouse_event.GetButton() == PP_INPUTEVENT_MOUSEBUTTON_LEFT) {
-        ChangeState(BUTTON_PRESSED, false);
-        is_pressed_ = true;
-      }
-      break;
-    case PP_INPUTEVENT_TYPE_MOUSEUP:
-      if (mouse_event.GetButton() == PP_INPUTEVENT_MOUSEBUTTON_LEFT &&
-          is_pressed_) {
-        OnButtonClicked();
-        is_pressed_ = false;
-      } else {
-        // Since button has not been pressed, return false to allow other
-        // controls (scrollbar) to process mouse button up.
-        return false;
-      }
-      break;
-    default:
-      handled = false;
-      break;
-  }
-
-  return handled;
-}
-
-void Button::OnEventCaptureReleased() {
-  ChangeState(BUTTON_NORMAL, false);
-}
-
-void Button::Show(bool visible, bool invalidate) {
-  // If button become invisible, remove pressed flag.
-  if (!visible)
-    is_pressed_ = false;
-  Control::Show(visible, invalidate);
-}
-
-void Button::AdjustTransparency(uint8 transparency, bool invalidate) {
-  // If button become invisible, remove pressed flag.
-  if (transparency == kTransparentAlpha)
-    is_pressed_ = false;
-  Control::AdjustTransparency(transparency, invalidate);
-}
-
-void Button::SetPressedState(bool pressed) {
-  if (style_ == BUTTON_STATE) {
-    if (IsPressed() != pressed)
-      ChangeState(pressed ? BUTTON_PRESSED_STICKY : BUTTON_NORMAL, true);
-  }
-}
-
-const pp::ImageData& Button::GetCurrentImage() {
-  switch (state_) {
-    case BUTTON_NORMAL: return normal_;
-    case BUTTON_HIGHLIGHTED: return highlighted_;
-    case BUTTON_PRESSED:
-    case BUTTON_PRESSED_STICKY: return pressed_;
-  }
-  NOTREACHED();
-  return normal_;
-}
-
-void Button::ChangeState(ButtonState new_state, bool force) {
-  if (style_ == BUTTON_STATE && !force) {
-    // If button is a state button and pressed state is sticky,
-    // user have to click on this button again to unpress it.
-    if ((state_ == BUTTON_PRESSED_STICKY && new_state != BUTTON_PRESSED_STICKY)
-        ||
-        (state_ != BUTTON_PRESSED_STICKY && new_state == BUTTON_PRESSED_STICKY))
-      return;
-  }
-
-  if (state_ != new_state) {
-    state_ = new_state;
-    owner()->Invalidate(id(), rect());
-  }
-}
-
-void Button::OnButtonClicked() {
-  switch (style_) {
-    case BUTTON_CLICKABLE:
-      ChangeState(BUTTON_HIGHLIGHTED, true);
-      owner()->OnEvent(id(), EVENT_ID_BUTTON_CLICKED, NULL);
-      break;
-    case BUTTON_STATE:
-      SetPressedState(!IsPressed());
-      owner()->OnEvent(id(), EVENT_ID_BUTTON_STATE_CHANGED, NULL);
-      break;
-    default:
-      NOTREACHED();
-  }
-}
-
-}  // namespace chrome_pdf
-