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      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/examples/textfield_example.h"
      6 
      7 #include "base/strings/utf_string_conversions.h"
      8 #include "ui/base/events/event.h"
      9 #include "ui/base/range/range.h"
     10 #include "ui/gfx/render_text.h"
     11 #include "ui/views/controls/button/label_button.h"
     12 #include "ui/views/controls/label.h"
     13 #include "ui/views/controls/textfield/textfield.h"
     14 #include "ui/views/layout/grid_layout.h"
     15 #include "ui/views/view.h"
     16 
     17 namespace views {
     18 namespace examples {
     19 
     20 TextfieldExample::TextfieldExample()
     21    : ExampleBase("Textfield"),
     22      name_(NULL),
     23      password_(NULL),
     24      read_only_(NULL),
     25      show_password_(NULL),
     26      clear_all_(NULL),
     27      append_(NULL),
     28      set_(NULL),
     29      set_style_(NULL) {
     30 }
     31 
     32 TextfieldExample::~TextfieldExample() {
     33 }
     34 
     35 void TextfieldExample::CreateExampleView(View* container) {
     36   name_ = new Textfield();
     37   password_ = new Textfield(Textfield::STYLE_OBSCURED);
     38   password_->set_placeholder_text(ASCIIToUTF16("password"));
     39   read_only_ = new Textfield();
     40   read_only_->SetReadOnly(true);
     41   read_only_->SetText(ASCIIToUTF16("read only"));
     42   show_password_ = new LabelButton(this, ASCIIToUTF16("Show password"));
     43   clear_all_ = new LabelButton(this, ASCIIToUTF16("Clear All"));
     44   append_ = new LabelButton(this, ASCIIToUTF16("Append"));
     45   set_ = new LabelButton(this, ASCIIToUTF16("Set"));
     46   set_style_ = new LabelButton(this, ASCIIToUTF16("Set Styles"));
     47   name_->SetController(this);
     48   password_->SetController(this);
     49 
     50   GridLayout* layout = new GridLayout(container);
     51   container->SetLayoutManager(layout);
     52 
     53   ColumnSet* column_set = layout->AddColumnSet(0);
     54   column_set->AddColumn(GridLayout::LEADING, GridLayout::FILL,
     55                         0.2f, GridLayout::USE_PREF, 0, 0);
     56   column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
     57                         0.8f, GridLayout::USE_PREF, 0, 0);
     58   layout->StartRow(0, 0);
     59   layout->AddView(new Label(ASCIIToUTF16("Name:")));
     60   layout->AddView(name_);
     61   layout->StartRow(0, 0);
     62   layout->AddView(new Label(ASCIIToUTF16("Password:")));
     63   layout->AddView(password_);
     64   layout->StartRow(0, 0);
     65   layout->AddView(new Label(ASCIIToUTF16("Read Only:")));
     66   layout->AddView(read_only_);
     67   layout->StartRow(0, 0);
     68   layout->AddView(show_password_);
     69   layout->StartRow(0, 0);
     70   layout->AddView(clear_all_);
     71   layout->StartRow(0, 0);
     72   layout->AddView(append_);
     73   layout->StartRow(0, 0);
     74   layout->AddView(set_);
     75   layout->StartRow(0, 0);
     76   layout->AddView(set_style_);
     77 }
     78 
     79 void TextfieldExample::ContentsChanged(Textfield* sender,
     80                                        const string16& new_contents) {
     81   if (sender == name_) {
     82     PrintStatus("Name [%s]", UTF16ToUTF8(new_contents).c_str());
     83   } else if (sender == password_) {
     84     PrintStatus("Password [%s]", UTF16ToUTF8(new_contents).c_str());
     85   } else if (sender == read_only_) {
     86     PrintStatus("Read Only [%s]", UTF16ToUTF8(new_contents).c_str());
     87   }
     88 }
     89 
     90 bool TextfieldExample::HandleKeyEvent(Textfield* sender,
     91                                       const ui::KeyEvent& key_event) {
     92   return false;
     93 }
     94 
     95 bool TextfieldExample::HandleMouseEvent(Textfield* sender,
     96                                         const ui::MouseEvent& mouse_event) {
     97   PrintStatus("HandleMouseEvent click count=%d", mouse_event.GetClickCount());
     98   return false;
     99 }
    100 
    101 void TextfieldExample::ButtonPressed(Button* sender, const ui::Event& event) {
    102   if (sender == show_password_) {
    103     PrintStatus("Password [%s]", UTF16ToUTF8(password_->text()).c_str());
    104   } else if (sender == clear_all_) {
    105     string16 empty;
    106     name_->SetText(empty);
    107     password_->SetText(empty);
    108     read_only_->SetText(empty);
    109   } else if (sender == append_) {
    110     name_->AppendText(ASCIIToUTF16("[append]"));
    111     password_->AppendText(ASCIIToUTF16("[append]"));
    112     read_only_->AppendText(ASCIIToUTF16("[append]"));
    113   } else if (sender == set_) {
    114     name_->SetText(ASCIIToUTF16("[set]"));
    115     password_->SetText(ASCIIToUTF16("[set]"));
    116     read_only_->SetText(ASCIIToUTF16("[set]"));
    117   } else if (sender == set_style_) {
    118     if (!name_->text().empty()) {
    119       name_->SetColor(SK_ColorGREEN);
    120       name_->SetStyle(gfx::BOLD, true);
    121 
    122       if (name_->text().length() >= 5) {
    123         size_t fifth = name_->text().length() / 5;
    124         const ui::Range big_range(1 * fifth, 4 * fifth);
    125         name_->ApplyStyle(gfx::BOLD, false, big_range);
    126         name_->ApplyStyle(gfx::UNDERLINE, true, big_range);
    127         name_->ApplyColor(SK_ColorBLUE, big_range);
    128 
    129         const ui::Range small_range(2 * fifth, 3 * fifth);
    130         name_->ApplyStyle(gfx::ITALIC, true, small_range);
    131         name_->ApplyStyle(gfx::UNDERLINE, false, small_range);
    132         name_->ApplyStyle(gfx::DIAGONAL_STRIKE, true, small_range);
    133         name_->ApplyColor(SK_ColorRED, small_range);
    134       }
    135     }
    136   }
    137 }
    138 
    139 }  // namespace examples
    140 }  // namespace views
    141