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134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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namespace juce::detail
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{
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//==============================================================================
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class ButtonAccessibilityHandler : public AccessibilityHandler
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{
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public:
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ButtonAccessibilityHandler (Button& buttonToWrap, AccessibilityRole roleIn)
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: AccessibilityHandler (buttonToWrap,
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isRadioButton (buttonToWrap) ? AccessibilityRole::radioButton : roleIn,
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getAccessibilityActions (buttonToWrap),
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getAccessibilityInterfaces (buttonToWrap)),
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button (buttonToWrap)
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{}
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AccessibleState getCurrentState() const override
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{
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auto state = AccessibilityHandler::getCurrentState();
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if (button.isToggleable())
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{
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state = state.withCheckable();
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if (button.getToggleState())
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state = state.withChecked();
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}
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return state;
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}
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String getTitle() const override
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{
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auto title = AccessibilityHandler::getTitle();
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if (title.isEmpty())
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return button.getButtonText();
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return title;
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}
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String getHelp() const override
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{
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return button.getTooltip();
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}
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private:
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class ButtonValueInterface : public AccessibilityTextValueInterface
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{
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public:
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explicit ButtonValueInterface (Button& buttonToWrap)
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: button (buttonToWrap)
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{
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}
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bool isReadOnly() const override { return true; }
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String getCurrentValueAsString() const override { return button.getToggleState() ? "On" : "Off"; }
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void setValueAsString (const String&) override {}
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private:
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Button& button;
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//==============================================================================
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ButtonValueInterface)
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};
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static bool isRadioButton (const Button& button) noexcept
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{
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return button.getRadioGroupId() != 0;
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}
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static AccessibilityActions getAccessibilityActions (Button& button)
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{
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auto actions = AccessibilityActions().addAction (AccessibilityActionType::press,
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[&button] { button.triggerClick(); });
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if (button.isToggleable())
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actions = actions.addAction (AccessibilityActionType::toggle,
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[&button] { button.setToggleState (! button.getToggleState(), sendNotification); });
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return actions;
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}
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static Interfaces getAccessibilityInterfaces (Button& button)
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{
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if (button.isToggleable())
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return { std::make_unique<ButtonValueInterface> (button) };
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return {};
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}
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Button& button;
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//==============================================================================
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ButtonAccessibilityHandler)
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};
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} // namespace juce::detail
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