99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
#include "window.hpp"
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#if defined(OS_WEB)
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#include <emscripten.h>
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#include <emscripten/html5.h>
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#include <hex/api/event_manager.hpp>
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// Function used by c++ to get the size of the html canvas
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EM_JS(int, canvas_get_width, (), {
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return Module.canvas.width;
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});
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// Function used by c++ to get the size of the html canvas
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EM_JS(int, canvas_get_height, (), {
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return Module.canvas.height;
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});
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// Function called by javascript
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EM_JS(void, resizeCanvas, (), {
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js_resizeCanvas();
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});
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EM_JS(void, setupThemeListener, (), {
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window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', event => {
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Module._handleThemeChange();
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});
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});
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EM_JS(bool, isDarkModeEnabled, (), {
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return window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches
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});
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EMSCRIPTEN_KEEPALIVE
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extern "C" void handleThemeChange() {
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hex::EventOSThemeChanged::post();
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}
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namespace hex {
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void nativeErrorMessage(const std::string &message) {
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log::fatal(message);
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EM_ASM({
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alert(UTF8ToString($0));
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}, message.c_str());
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}
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void Window::initNative() {
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EM_ASM({
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// Save data directory
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FS.mkdir("/home/web_user/.local");
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FS.mount(IDBFS, {}, '/home/web_user/.local');
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FS.syncfs(true, function (err) {
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if (!err)
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return;
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alert("Failed to load permanent file system: "+err);
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});
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});
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}
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void Window::setupNativeWindow() {
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resizeCanvas();
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setupThemeListener();
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bool themeFollowSystem = ImHexApi::System::usesSystemThemeDetection();
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EventOSThemeChanged::subscribe(this, [themeFollowSystem] {
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if (!themeFollowSystem) return;
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RequestChangeTheme::post(!isDarkModeEnabled() ? "Light" : "Dark");
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});
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if (themeFollowSystem)
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EventOSThemeChanged::post();
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}
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void Window::beginNativeWindowFrame() {
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static i32 prevWidth = 0;
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static i32 prevHeight = 0;
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auto width = canvas_get_width();
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auto height = canvas_get_height();
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if (prevWidth != width || prevHeight != height) {
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// Size has changed
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prevWidth = width;
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prevHeight = height;
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this->resize(width, height);
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}
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}
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void Window::endNativeWindowFrame() {
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}
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}
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#endif |