// 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 "chrome/browser/ui/views/find_bar_view.h" #include #include "base/string_util.h" #include "base/strings/string_number_conversions.h" #include "base/utf_string_conversions.h" #include "chrome/browser/profiles/profile.h" #include "chrome/browser/themes/theme_properties.h" #include "chrome/browser/ui/find_bar/find_bar_controller.h" #include "chrome/browser/ui/find_bar/find_bar_state.h" #include "chrome/browser/ui/find_bar/find_bar_state_factory.h" #include "chrome/browser/ui/find_bar/find_notification_details.h" #include "chrome/browser/ui/find_bar/find_tab_helper.h" #include "chrome/browser/ui/view_ids.h" #include "chrome/browser/ui/views/find_bar_host.h" #include "chrome/browser/ui/views/frame/browser_view.h" #include "grit/generated_resources.h" #include "grit/theme_resources.h" #include "grit/ui_resources.h" #include "third_party/skia/include/effects/SkGradientShader.h" #include "ui/base/clipboard/scoped_clipboard_writer.h" #include "ui/base/events/event.h" #include "ui/base/l10n/l10n_util.h" #include "ui/base/resource/resource_bundle.h" #include "ui/base/theme_provider.h" #include "ui/gfx/canvas.h" #include "ui/views/controls/button/image_button.h" #include "ui/views/controls/label.h" #include "ui/views/controls/textfield/textfield.h" #include "ui/views/widget/widget.h" // The amount of whitespace to have before the find button. static const int kWhiteSpaceAfterMatchCountLabel = 1; // The margins around the search field and the close button. static const int kMarginLeftOfCloseButton = 3; static const int kMarginRightOfCloseButton = 7; static const int kMarginLeftOfFindTextfield = 12; // The margins around the match count label (We add extra space so that the // background highlight extends beyond just the text). static const int kMatchCountExtraWidth = 9; // Minimum width for the match count label. static const int kMatchCountMinWidth = 30; // The text color for the match count label. static const SkColor kTextColorMatchCount = SkColorSetRGB(178, 178, 178); // The text color for the match count label when no matches are found. static const SkColor kTextColorNoMatch = SK_ColorBLACK; // The background color of the match count label when results are found. static const SkColor kBackgroundColorMatch = SkColorSetARGB(0, 255, 255, 255); // The background color of the match count label when no results are found. static const SkColor kBackgroundColorNoMatch = SkColorSetRGB(255, 102, 102); // The default number of average characters that the text box will be. This // number brings the width on a "regular fonts" system to about 300px. static const int kDefaultCharWidth = 43; //////////////////////////////////////////////////////////////////////////////// // FindBarView, public: FindBarView::FindBarView(FindBarHost* host) : DropdownBarView(host), find_text_(NULL), match_count_text_(NULL), focus_forwarder_view_(NULL), find_previous_button_(NULL), find_next_button_(NULL), close_button_(NULL), text_box_background_(NULL), text_box_background_left_(NULL) { set_id(VIEW_ID_FIND_IN_PAGE); ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); find_text_ = new views::Textfield(); find_text_->set_id(VIEW_ID_FIND_IN_PAGE_TEXT_FIELD); find_text_->SetFont(rb.GetFont(ui::ResourceBundle::BaseFont)); find_text_->set_default_width_in_chars(kDefaultCharWidth); find_text_->SetController(this); find_text_->SetAccessibleName(l10n_util::GetStringUTF16(IDS_ACCNAME_FIND)); AddChildView(find_text_); match_count_text_ = new views::Label(); match_count_text_->SetFont(rb.GetFont(ui::ResourceBundle::BaseFont)); AddChildView(match_count_text_); // Create a focus forwarder view which sends focus to find_text_. focus_forwarder_view_ = new FocusForwarderView(find_text_); AddChildView(focus_forwarder_view_); find_previous_button_ = new views::ImageButton(this); find_previous_button_->set_tag(FIND_PREVIOUS_TAG); find_previous_button_->set_focusable(true); find_previous_button_->SetImage(views::CustomButton::STATE_NORMAL, rb.GetImageSkiaNamed(IDR_FINDINPAGE_PREV)); find_previous_button_->SetImage(views::CustomButton::STATE_HOVERED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_PREV_H)); find_previous_button_->SetImage(views::CustomButton::STATE_PRESSED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_PREV_P)); find_previous_button_->SetImage(views::CustomButton::STATE_DISABLED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_PREV_D)); find_previous_button_->SetTooltipText( l10n_util::GetStringUTF16(IDS_FIND_IN_PAGE_PREVIOUS_TOOLTIP)); find_previous_button_->SetAccessibleName( l10n_util::GetStringUTF16(IDS_ACCNAME_PREVIOUS)); AddChildView(find_previous_button_); find_next_button_ = new views::ImageButton(this); find_next_button_->set_tag(FIND_NEXT_TAG); find_next_button_->set_focusable(true); find_next_button_->SetImage(views::CustomButton::STATE_NORMAL, rb.GetImageSkiaNamed(IDR_FINDINPAGE_NEXT)); find_next_button_->SetImage(views::CustomButton::STATE_HOVERED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_NEXT_H)); find_next_button_->SetImage(views::CustomButton::STATE_PRESSED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_NEXT_P)); find_next_button_->SetImage(views::CustomButton::STATE_DISABLED, rb.GetImageSkiaNamed(IDR_FINDINPAGE_NEXT_D)); find_next_button_->SetTooltipText( l10n_util::GetStringUTF16(IDS_FIND_IN_PAGE_NEXT_TOOLTIP)); find_next_button_->SetAccessibleName( l10n_util::GetStringUTF16(IDS_ACCNAME_NEXT)); AddChildView(find_next_button_); close_button_ = new views::ImageButton(this); close_button_->set_tag(CLOSE_TAG); close_button_->set_focusable(true); close_button_->SetImage(views::CustomButton::STATE_NORMAL, rb.GetImageSkiaNamed(IDR_CLOSE_1)); close_button_->SetImage(views::CustomButton::STATE_HOVERED, rb.GetImageSkiaNamed(IDR_CLOSE_1_H)); close_button_->SetImage(views::CustomButton::STATE_PRESSED, rb.GetImageSkiaNamed(IDR_CLOSE_1_P)); close_button_->SetTooltipText( l10n_util::GetStringUTF16(IDS_FIND_IN_PAGE_CLOSE_TOOLTIP)); close_button_->SetAccessibleName( l10n_util::GetStringUTF16(IDS_ACCNAME_CLOSE)); close_button_->SetAnimationDuration(0); AddChildView(close_button_); SetBackground(rb.GetImageSkiaNamed(IDR_FIND_DLG_LEFT_BACKGROUND), rb.GetImageSkiaNamed(IDR_FIND_DLG_RIGHT_BACKGROUND)); SetBorder(IDR_FIND_DIALOG_LEFT, IDR_FIND_DIALOG_MIDDLE, IDR_FIND_DIALOG_RIGHT); preferred_height_ = rb.GetImageSkiaNamed(IDR_FIND_DIALOG_MIDDLE)->height(); // Background images for the Find edit box. text_box_background_ = rb.GetImageSkiaNamed(IDR_FIND_BOX_BACKGROUND); text_box_background_left_ = rb.GetImageSkiaNamed(IDR_FIND_BOX_BACKGROUND_LEFT); EnableCanvasFlippingForRTLUI(true); } FindBarView::~FindBarView() { } void FindBarView::SetFindText(const string16& find_text) { find_text_->SetText(find_text); } string16 FindBarView::GetFindText() const { return find_text_->text(); } string16 FindBarView::GetFindSelectedText() const { return find_text_->GetSelectedText(); } string16 FindBarView::GetMatchCountText() const { return match_count_text_->text(); } void FindBarView::UpdateForResult(const FindNotificationDetails& result, const string16& find_text) { bool have_valid_range = result.number_of_matches() != -1 && result.active_match_ordinal() != -1; // http://crbug.com/34970: some IMEs get confused if we change the text // composed by them. To avoid this problem, we should check the IME status and // update the text only when the IME is not composing text. if (find_text_->text() != find_text && !find_text_->IsIMEComposing()) { find_text_->SetText(find_text); find_text_->SelectAll(true); } if (find_text.empty() || !have_valid_range) { // If there was no text entered, we don't show anything in the result count // area. ClearMatchCount(); return; } match_count_text_->SetText(l10n_util::GetStringFUTF16(IDS_FIND_IN_PAGE_COUNT, base::IntToString16(result.active_match_ordinal()), base::IntToString16(result.number_of_matches()))); UpdateMatchCountAppearance(result.number_of_matches() == 0 && result.final_update()); // The match_count label may have increased/decreased in size so we need to // do a layout and repaint the dialog so that the find text field doesn't // partially overlap the match-count label when it increases on no matches. Layout(); SchedulePaint(); } void FindBarView::ClearMatchCount() { match_count_text_->SetText(string16()); UpdateMatchCountAppearance(false); Layout(); SchedulePaint(); } void FindBarView::SetFocusAndSelection(bool select_all) { find_text_->RequestFocus(); if (select_all && !find_text_->text().empty()) find_text_->SelectAll(true); } /////////////////////////////////////////////////////////////////////////////// // FindBarView, views::View overrides: void FindBarView::OnPaint(gfx::Canvas* canvas) { // Paint drop down bar border and background. DropdownBarView::OnPaint(canvas); // Then we draw the background image for the Find Textfield. We start by // calculating the position of background images for the Find text box. int find_text_x = find_text_->x(); gfx::Point back_button_origin = find_previous_button_->bounds().origin(); // Draw the image to the left that creates a curved left edge for the box. canvas->TileImageInt(*text_box_background_left_, find_text_x - text_box_background_left_->width(), back_button_origin.y(), text_box_background_left_->width(), text_box_background_left_->height()); // Draw the top and bottom border for whole text box (encompasses both the // find_text_ edit box and the match_count_text_ label). canvas->TileImageInt(*text_box_background_, find_text_x, back_button_origin.y(), back_button_origin.x() - find_text_x, text_box_background_->height()); // Draw the background of the match text. We want to make sure the red // "no-match" background almost completely fills up the amount of vertical // space within the text box. We therefore fix the size relative to the button // heights. We use the FindPrev button, which has a 1px outer whitespace // margin, 1px border and we want to appear 1px below the border line so we // subtract 3 for top and 3 for bottom. gfx::Rect match_count_background_bounds(match_count_text_->bounds()); match_count_background_bounds.set_height( find_previous_button_->height() - 6); // Subtract 3px x 2. match_count_background_bounds.set_y( (height() - match_count_background_bounds.height()) / 2); canvas->FillRect(match_count_background_bounds, match_count_text_->background_color()); } void FindBarView::Layout() { int panel_width = GetPreferredSize().width(); // Stay within view bounds. int view_width = width(); if (view_width && view_width < panel_width) panel_width = view_width; // First we draw the close button on the far right. gfx::Size sz = close_button_->GetPreferredSize(); close_button_->SetBounds(panel_width - sz.width() - kMarginRightOfCloseButton, (height() - sz.height()) / 2, sz.width(), sz.height()); // Set the color. OnThemeChanged(); // Next, the FindNext button to the left the close button. sz = find_next_button_->GetPreferredSize(); find_next_button_->SetBounds(close_button_->x() - find_next_button_->width() - kMarginLeftOfCloseButton, (height() - sz.height()) / 2, sz.width(), sz.height()); // Then, the FindPrevious button to the left the FindNext button. sz = find_previous_button_->GetPreferredSize(); find_previous_button_->SetBounds(find_next_button_->x() - find_previous_button_->width(), (height() - sz.height()) / 2, sz.width(), sz.height()); sz = find_text_->GetPreferredSize(); const int find_text_y = (height() - sz.height()) / 2 + 1; // Then the label showing the match count number. sz = match_count_text_->GetPreferredSize(); // We extend the label bounds a bit to give the background highlighting a bit // of breathing room (margins around the text). sz.Enlarge(kMatchCountExtraWidth, 0); sz.set_width(std::max(kMatchCountMinWidth, static_cast(sz.width()))); int match_count_x = find_previous_button_->x() - kWhiteSpaceAfterMatchCountLabel - sz.width(); match_count_text_->SetBounds(match_count_x, find_text_y + find_text_->GetBaseline() - match_count_text_->GetBaseline(), sz.width(), sz.height()); // And whatever space is left in between, gets filled up by the find edit box. sz = find_text_->GetPreferredSize(); sz.set_width(std::max(0, match_count_x - kMarginLeftOfFindTextfield)); int find_text_x = std::max(0, match_count_x - sz.width()); find_text_->SetBounds(find_text_x, (height() - sz.height()) / 2 + 1, sz.width(), sz.height()); // The focus forwarder view is a hidden view that should cover the area // between the find text box and the find button so that when the user clicks // in that area we focus on the find text box. int find_text_edge = find_text_->x() + find_text_->width(); focus_forwarder_view_->SetBounds(find_text_edge, find_previous_button_->y(), find_previous_button_->x() - find_text_edge, find_previous_button_->height()); } void FindBarView::ViewHierarchyChanged(bool is_add, View* parent, View* child) { if (is_add && child == this) { find_text_->SetHorizontalMargins(3, 3); // Left and Right margins. find_text_->SetVerticalMargins(0, 0); // Top and bottom margins. find_text_->RemoveBorder(); // We draw our own border (a background image). } } gfx::Size FindBarView::GetPreferredSize() { gfx::Size prefsize = find_text_->GetPreferredSize(); prefsize.set_height(preferred_height_); // Add up all the preferred sizes and margins of the rest of the controls. prefsize.Enlarge(kMarginLeftOfCloseButton + kMarginRightOfCloseButton + kMarginLeftOfFindTextfield, 0); prefsize.Enlarge(find_previous_button_->GetPreferredSize().width(), 0); prefsize.Enlarge(find_next_button_->GetPreferredSize().width(), 0); prefsize.Enlarge(close_button_->GetPreferredSize().width(), 0); return prefsize; } //////////////////////////////////////////////////////////////////////////////// // FindBarView, views::ButtonListener implementation: void FindBarView::ButtonPressed( views::Button* sender, const ui::Event& event) { switch (sender->tag()) { case FIND_PREVIOUS_TAG: case FIND_NEXT_TAG: if (!find_text_->text().empty()) { FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents( find_bar_host()->GetFindBarController()->web_contents()); find_tab_helper->StartFinding(find_text_->text(), sender->tag() == FIND_NEXT_TAG, false); // Not case sensitive. } if (event.IsMouseEvent()) { // If mouse event, we move the focus back to the text-field, so that the // user doesn't have to click on the text field to change the search. We // don't want to do this for keyboard clicks on the button, since the // user is more likely to press FindNext again than change the search // query. find_text_->RequestFocus(); } break; case CLOSE_TAG: find_bar_host()->GetFindBarController()->EndFindSession( FindBarController::kKeepSelectionOnPage, FindBarController::kKeepResultsInFindBox); break; default: NOTREACHED() << L"Unknown button"; break; } } //////////////////////////////////////////////////////////////////////////////// // FindBarView, views::TextfieldController implementation: void FindBarView::ContentsChanged(views::Textfield* sender, const string16& new_contents) { FindBarController* controller = find_bar_host()->GetFindBarController(); DCHECK(controller); content::WebContents* web_contents = controller->web_contents(); // We must guard against a NULL web_contents, which can happen if the text // in the Find box is changed right after the tab is destroyed. Otherwise, it // can lead to crashes, as exposed by automation testing in issue 8048. if (!web_contents) return; FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(web_contents); // When the user changes something in the text box we check the contents and // if the textbox contains something we set it as the new search string and // initiate search (even though old searches might be in progress). if (!new_contents.empty()) { // The last two params here are forward (true) and case sensitive (false). find_tab_helper->StartFinding(new_contents, true, false); } else { find_tab_helper->StopFinding(FindBarController::kClearSelectionOnPage); UpdateForResult(find_tab_helper->find_result(), string16()); find_bar_host()->MoveWindowIfNecessary(gfx::Rect(), false); // Clearing the text box should clear the prepopulate state so that when // we close and reopen the Find box it doesn't show the search we just // deleted. We can't do this on ChromeOS yet because we get ContentsChanged // sent for a lot more things than just the user nulling out the search // terms. See http://crbug.com/45372. Profile* profile = Profile::FromBrowserContext(web_contents->GetBrowserContext()); FindBarState* find_bar_state = FindBarStateFactory::GetForProfile(profile); find_bar_state->set_last_prepopulate_text(string16()); } } bool FindBarView::HandleKeyEvent(views::Textfield* sender, const ui::KeyEvent& key_event) { // If the dialog is not visible, there is no reason to process keyboard input. if (!host()->IsVisible()) return false; if (find_bar_host()->MaybeForwardKeyEventToWebpage(key_event)) return true; // Handled, we are done! if (key_event.key_code() == ui::VKEY_RETURN) { // Pressing Return/Enter starts the search (unless text box is empty). string16 find_string = find_text_->text(); if (!find_string.empty()) { FindBarController* controller = find_bar_host()->GetFindBarController(); FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(controller->web_contents()); // Search forwards for enter, backwards for shift-enter. find_tab_helper->StartFinding(find_string, !key_event.IsShiftDown(), false); // Not case sensitive. } } return false; } void FindBarView::OnAfterCutOrCopy() { Profile* profile = host()->browser_view()->browser()->profile(); ui::Clipboard::SourceTag source_tag = content::BrowserContext::GetMarkerForOffTheRecordContext(profile); if (source_tag != ui::Clipboard::SourceTag()) { // Overwrite the clipboard with the correct SourceTag ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread(); string16 text; clipboard->ReadText(ui::Clipboard::BUFFER_STANDARD, &text); ui::ScopedClipboardWriter scw(clipboard, ui::Clipboard::BUFFER_STANDARD, source_tag); scw.WriteText(text); } } void FindBarView::UpdateMatchCountAppearance(bool no_match) { if (no_match) { match_count_text_->SetBackgroundColor(kBackgroundColorNoMatch); match_count_text_->SetEnabledColor(kTextColorNoMatch); } else { match_count_text_->SetBackgroundColor(kBackgroundColorMatch); match_count_text_->SetEnabledColor(kTextColorMatchCount); } } bool FindBarView::FocusForwarderView::OnMousePressed( const ui::MouseEvent& event) { if (view_to_focus_on_mousedown_) view_to_focus_on_mousedown_->RequestFocus(); return true; } FindBarHost* FindBarView::find_bar_host() const { return static_cast(host()); } void FindBarView::OnThemeChanged() { ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); if (GetThemeProvider()) { close_button_->SetBackground( GetThemeProvider()->GetColor(ThemeProperties::COLOR_TAB_TEXT), rb.GetImageSkiaNamed(IDR_CLOSE_1), rb.GetImageSkiaNamed(IDR_CLOSE_1_MASK)); } }