monaco-tm/index.html at master · thebaselab/monaco-tm · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title>Monaco TextMate Demo</title>
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"
    />
    <meta charset="UTF-8" />
  </head>
  <style>
    @font-face {
      font-family: "Fira Code";
      src: local("FiraCode-Regular"),
        url("fonts/FiraCode-Regular.ttf") format("truetype");
    }
    body {
      font-family: system-ui, -apple-system;
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
      overflow: hidden;
      position: fixed;
      touch-action: none;
    }
    #overlay {
      width: 0;
      height: 0;
      position: absolute;
    }
    .addedBackground,
    .deletedBackground,
    .modifiedBackground {
      width: 3px !important;
      margin-left: 6px;
      transform: translate(-50%, 0);
      transition: 0.1s;
    }
    .addedBackground {
      background: rgb(129, 184, 139);
    }
    .deletedBackground {
      background: rgb(202, 75, 81);
    }
    .modifiedBackground {
      background: rgb(102, 175, 224);
    }
    .addedBackground:hover,
    .deletedBackground:hover,
    .modifiedBackground:hover {
      width: 8px !important;
    }
    @media (prefers-color-scheme: dark) {
      .addedBackground {
        background: rgb(88, 124, 12);
      }
      .deletedBackground {
        background: rgb(148, 21, 27);
      }
      .modifiedBackground {
        background: rgb(12, 125, 157);
      }
    }
  </style>
  <body>
    <div tabindex="0" id="overlay"></div>
    <div
      id="container"
      style="width: 100%; height: 100vh; overflow: hidden"
    ></div>
    <script src="app.bundle.js"></script>
    <script defer>
      var states = {};

      var customDarkTheme = null;
      var customLightTheme = null;
      var customDarkThemeName = null;
      var customLightThemeName = null;
      var previousDecoration = [];

      let devicehasCursor = false;
      let vimMode = null;

      class VimStatusBarAdpator {
        constructor(node, editor, sanitizer) {
          console.log("Constuctor called");
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.mode.change",
            newMode: "--NORMAL--",
          });
        }

        setMode(ev){
          let mode = `--${ev.mode.toUpperCase()}--`;
          if (ev.mode === "visual") {
            if (ev.subMode === "linewise") {
              mode = "--VISUAL LINE--";
            } else if (ev.subMode === "blockwise") {
              mode = "--VISUAL BLOCK--";
            } else {
              mode = "--VISUAL--";
            }
          }
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.mode.change",
            newMode: mode,
          });
        }

        setKeyBuffer(key) {
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.keybuffer.set",
            buffer: key,
          });
        }

        toggleVisibility(isVisible) {
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.visible.set",
            isVisible: isVisible,
          });
        }

        closeInput() {
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.close.input"
          });
        }

        clear(){
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "vim.clear",
          });
        }

        setSec(text, callback, options) {
          // TODO: Handle prompt to enable ex commands and search
        }
      }

      setTimeout(() => {
        if (typeof editor === "undefined") {
          // Special handling for Lockdown Mode (no WebAssembly)
          // https://github.com/thebaselab/codeapp/issues/895
          if (typeof WebAssembly === "undefined") {
            const editor = monaco.editor.create(
              document.getElementById("container"),
              {
                value: '',
                language: "javascript",
                theme: "vs-dark",
              }
            );
            window.editor = editor;
            applyListeners(editor)
          }else {
            location.reload();
          }
        }
      }, 1000);

      window
        .matchMedia("(prefers-color-scheme: dark)")
        .addEventListener("change", (e) => {
          const newColorScheme = e.matches ? "dark" : "light";

          if (newColorScheme == "dark") {
            if (customDarkTheme === null) {
              changeTheme("vs-dark");
            } else {
              setTheme(customDarkThemeName, customDarkTheme);
            }
          } else {
            if (customLightTheme === null) {
              changeTheme("vs");
            } else {
              setTheme(customLightThemeName, customLightTheme);
            }
          }
        });

      function getChangeType(change) {
        if (change.originalEndLineNumber === 0) {
          return "added"; // Add
        } else if (change.modifiedEndLineNumber === 0) {
          return "deleted"; // Delete
        } else {
          return "modified"; // Modify
        }
      }

      function invalidateDecorations() {
        previousDecoration = editor.deltaDecorations(previousDecoration, []);
      }

      function computeDiffForURI(uri) {
        monaco.editor.computeDirtyDiff("original://" + uri, uri, true).then(
          function (result) {
            var changes = result;
            var jsonChanges = [];
            for (const x in changes) {
              var change = changes[x];
              var decoration = {};

              const startLineNumber = change.modifiedStartLineNumber;
              const endLineNumber =
                change.modifiedEndLineNumber || startLineNumber;

              switch (getChangeType(change)) {
                case "modified":
                  decoration = {
                    range: new monaco.Range(
                      startLineNumber,
                      1,
                      endLineNumber,
                      1
                    ),
                    options: {
                      isWholeLine: true,
                      linesDecorationsClassName: "modifiedBackground",
                      minimap: {
                        color: "#66afe0",
                        darkColor: "#0c7d9d",
                        position: 2,
                      },
                    },
                    // Position: 1 - Inline, 2 - Gutter
                  };
                  break;
                case "added":
                  decoration = {
                    range: new monaco.Range(
                      startLineNumber,
                      1,
                      endLineNumber,
                      1
                    ),
                    options: {
                      isWholeLine: true,
                      linesDecorationsClassName: "addedBackground",
                      minimap: {
                        color: "#81b88b",
                        darkColor: "#587c0c",
                        position: 2,
                      },
                    },
                  };
                  break;
                case "deleted":
                  decoration = {
                    range: new monaco.Range(
                      startLineNumber,
                      Number.MAX_VALUE,
                      endLineNumber,
                      Number.MAX_VALUE
                    ),
                    options: {
                      isWholeLine: false,
                      linesDecorationsClassName: "deletedBackground",
                      minimap: {
                        color: "#ca4b51",
                        darkColor: "#94151b",
                        position: 2,
                      },
                    },
                  };
                  break;
              }
              jsonChanges.push(decoration);
            }
            // console.log(jsonChanges);
            previousDecoration = editor.deltaDecorations(
              previousDecoration,
              jsonChanges
            );
          },
          function (error) {
            console.log(error);
          }
        );
      }

      function provideOriginalTextForUri(uri, value) {
        var decodedContent = decodeURIComponent(escape(window.atob(value)));

        var originalUri = monaco.Uri.parse("original://" + uri);

        if (monaco.editor.getModel(originalUri)) {
          monaco.editor.getModel(originalUri).setValue(decodedContent);
        } else {
          monaco.editor.createModel(decodedContent, "plaintext", originalUri);
        }

        computeDiffForURI(uri);
      }

      function updateTheme() {
        if (
          window.matchMedia &&
          window.matchMedia("(prefers-color-scheme: dark)").matches
        ) {
          if (customDarkTheme === null) {
            changeTheme("vs-dark");
          } else {
            setTheme(customDarkThemeName, customDarkTheme);
          }
        } else {
          if (customLightTheme === null) {
            changeTheme("vs");
          } else {
            setTheme(customLightThemeName, customLightTheme);
          }
        }
      }

      function resetTheme(isDark) {
        if (isDark) {
          customDarkTheme = null;
          customLightThemeName = null;
        } else {
          customLightTheme = null;
          customLightThemeName = null;
        }
        updateTheme();
      }

      function applyBase64AsTheme(string, themeName, isDark) {
        var decodedString = decodeURIComponent(escape(window.atob(string)));
        var data = JSON.parse(decodedString);

        if (isDark) {
          customDarkTheme = data;
          customDarkThemeName = themeName;
        } else {
          customLightTheme = data;
          customLightThemeName = themeName;
        }
        updateTheme();
      }

      function getFirstNonSpaceColumn(line) {
        var firstNonSpaceCharPos = -1;
        for (let i = 0; i < line.length; i++) {
          if (line[i] != " " && line[i] != "\t" && line[i] != "\n") {
            firstNonSpaceCharPos = i + 1;
            break;
          }
        }
        return firstNonSpaceCharPos;
      }

      function applyListeners(instance) {
        if (
          window.matchMedia &&
          !window.matchMedia("(prefers-color-scheme: dark)").matches
        ) {
          if (customLightTheme === null) {
            changeTheme("vs");
          } else {
            setTheme(customLightThemeName, customLightTheme);
          }
        }

        if (
          window.webkit &&
          window.webkit.messageHandlers &&
          window.webkit.messageHandlers.toggleMessageHandler
        ) {
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "Editor Initialising",
          });
        }

        instance.onDidChangeModel((event) => {
          var currentModel = instance.getModel();
          var newModel = event.newModelUrl._formatted;

          if (newModel in states) {
            editor.restoreViewState(states[newModel]);
          }

          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "Request Diff Update",
            URI: newModel,
          });

          var position = instance.getPosition();
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
            Event: "Crusor Position changed",
            Column: position.column,
            lineNumber: position.lineNumber,
          });

          const inputareaElement = document.getElementsByClassName("inputarea")[0];
          inputareaElement?.addEventListener("focus", (event) => {
            window.webkit.messageHandlers.toggleMessageHandler.postMessage({
              Event: "focus",
            });
          });
        });

        instance.onDidChangeCursorPosition((event) => {
          var position = instance.getPosition();
          var message = "Crusor Position changed";
          if (
            window.webkit &&
            window.webkit.messageHandlers &&
            window.webkit.messageHandlers.toggleMessageHandler
          ) {
            window.webkit.messageHandlers.toggleMessageHandler.postMessage({
              Event: message,
              Column: position.column,
              lineNumber: position.lineNumber,
            });
          }
        });

        instance.onDidChangeModelContent((event) => {
          const currentModel = instance.getModel();
          const modelPath = currentModel._associatedResource._formatted;
          const originalUri = monaco.Uri.parse("original://" + modelPath);
          if (monaco.editor.getModel(originalUri)) {
            computeDiffForURI(modelPath);
          }

          if(event.isFlush){
            return;
          }

          var versionID = currentModel.getAlternativeVersionId();
          var position = instance.getPosition();
          var content = instance.getValue();

          let startLineNumber = Number.NEGATIVE_INFINITY;
          let endLineNumber = Number.POSITIVE_INFINITY;
          event.changes.forEach((change) => {
            if (change.range.startLineNumber > startLineNumber) {
              startLineNumber = change.range.startLineNumber;
            }
            if (change.range.endLineNumber < endLineNumber) {
              endLineNumber = change.range.endLineNumber;
            }
          });
          const startOffset = currentModel.getOffsetAt({
            column: 0,
            lineNumber: startLineNumber,
          });

          const numberOfLines = currentModel.getLineCount();

          const endOffset = numberOfLines < endLineNumber ? startOffset :
          currentModel.getOffsetAt({
            column: currentModel.getLineLength(endLineNumber),
            lineNumber: endLineNumber,
          });

          if (
            window.webkit &&
            window.webkit.messageHandlers &&
            window.webkit.messageHandlers.toggleMessageHandler
          ) {
            window.webkit.messageHandlers.toggleMessageHandler.postMessage({
              Event: "Content changed",
              VersionID: versionID,
              URI: modelPath,
              currentContent: content,
              startOffset: startOffset,
              endOffset: endOffset,
            });
          }
        });

        monaco.editor.onDidChangeMarkers((markers) => {
          var message = "Markers updated";
          if (
            window.webkit &&
            window.webkit.messageHandlers &&
            window.webkit.messageHandlers.toggleMessageHandler
          ) {
            window.webkit.messageHandlers.toggleMessageHandler.postMessage({
              Event: message,
              Markers: monaco.editor.getModelMarkers(),
            });
          }
        });

        monaco.editor.onWillDisposeModel((model) => {
          monaco.editor.setModelMarkers(model, "code.app.native", []);
        });

        instance.getContribution('editor.linkDetector').openerService._defaultExternalOpener.openExternal = (url) => {
          window.webkit.messageHandlers.toggleMessageHandler.postMessage({
              Event: "Open URL",
              url: url
          })
        };
      }

      var lastOpenedURI = "";
      var navi = null;

      function switchToDiffView(original, modified, url1, url2) {
        const originalUri = monaco.Uri.parse(url1);
        const modifiedUri = monaco.Uri.parse(url2);

        monaco.editor.getModel(originalUri)?.dispose();
        monaco.editor.getModel(modifiedUri)?.dispose();

        const originalModel = monaco.editor.createModel(
          base64ToString(original),
          undefined,
          originalUri
        );

        const modifiedModel = monaco.editor.createModel(
          base64ToString(modified),
          undefined,
          modifiedUri
        );

        editor.dispose();
        editor = null;

        editor = monaco.editor.createDiffEditor(
          document.getElementById("container"),
          {
            enableSplitViewResizing: false,
            automaticLayout: true,
            renderSideBySide: true,
          }
        );
        navi = monaco.editor.createDiffNavigator(editor, {
          followsCaret: true,
          ignoreCharChanges: true,
        });
        editor.setModel({
          original: originalModel,
          modified: modifiedModel,
        });
        applyListeners(editor.getOriginalEditor());
        applyListeners(editor.getModifiedEditor());
      }

      function switchToNormalView() {
        editor.dispose();
        editor = null;
        editor = monaco.editor.create(document.getElementById("container"), {
          theme: "vs-dark",
          automaticLayout: true,
          unicodeHighlight: {
            ambiguousCharacters: false,
          },
        });
        editor.getModel().dispose();
        applyListeners(editor);
        // editor.setModel(monaco.editor.getModel(monaco.Uri.parse(lastOpenedURI)));
      }

      function renameModel(oldURL, newURL) {
        var model1 = monaco.editor.getModel(monaco.Uri.parse(oldURL));
        var model2 = monaco.editor.createModel(
          model1.getValue(),
          undefined,
          monaco.Uri.parse(newURL)
        );

        var cm2 = model2._commandManager;
        var cm1 = model1._commandManager;

        cm2.currentOpenStackElement = cm1.currentOpenStackElement;
        cm2.past = cm1.past;
        cm2.future = cm1.future;
        model1.dispose();
      }

      function invalidateDiagnosticForOffset(startOffset, endOffset) {
        const model = editor.getModel();
        const startPosition = model.getPositionAt(startOffset);
        const endPosition = model.getPositionAt(endOffset);

        const rangeToRemove = {
          startColumn: 0,
          startLineNumber: startPosition.lineNumber,
          endColumn: model.getLineLength(endPosition.lineNumber),
          endLineNumber: endPosition.lineNumber,
        };

        const existingMarkers = monaco.editor
          .getModelMarkers({
            resource: model.uri,
          })
          .filter((marker) => {
            return !monaco.Range.areIntersecting(rangeToRemove, marker);
          });

        monaco.editor.setModelMarkers(
          model,
          "code.app.native",
          existingMarkers
        );
      }

      function provideDiagnostic(items, removeExisting) {
        const model = editor.getModel();
        const languageId = model.getLanguageId();

        if (languageId !== "markdown" && languageId !== "plaintext") {
          return;
        }
        const markerLineNumbers = new Set();
        const markers = items.map((item) => {
          const position = model.getPositionAt(item.offset);
          markerLineNumbers.add(position.lineNumber);
          return {
            endColumn: position.column + item.length,
            endLineNumber: position.lineNumber,
            message: item.message,
            severity: 2,
            startColumn: position.column,
            startLineNumber: position.lineNumber,
          };
        });
        const existingMarkers = monaco.editor
          .getModelMarkers({
            resource: model.uri,
          })
          .filter((marker) => !markerLineNumbers.has(marker.startLineNumber));

        monaco.editor.setModelMarkers(
          model,
          "code.app.native",
          markers.concat(existingMarkers)
        );
      }

      function base64ToString(base64) {
        return decodeURIComponent(escape(window.atob(base64)));
      }

      function onRequestNewTextModel(base64Url, base64Content) {
        const existingModelUri = editor.getModel()?.uri;
        if (existingModelUri) {
          states[existingModelUri] = editor.saveViewState();
        }

        const newModelUri = monaco.Uri.parse(base64ToString(base64Url));
        const existingModel = monaco.editor.getModel(newModelUri);
        const newModelContent = base64ToString(base64Content);

        if (existingModel) {
          if (existingModel.getValue() !== newModelContent) {
            existingModel.setValue(newModelContent);
          }
          if (editor.getModel() !== existingModel) {
            editor.setModel(existingModel);
          }
        } else {
          const newModel = monaco.editor.createModel(
            newModelContent,
            undefined,
            newModelUri
          );
          editor.setModel(newModel);
        }
      }

      function setValueForModel(base64Url, base64Content) {
        const url = base64ToString(base64Url);
        const model = monaco.editor.getModel(monaco.Uri.parse(url));
        if (!model) return;

        if (editor.getModel() === model){
          editor.executeEdits("code.app.native", [{
            range: model.getFullModelRange(),
            text: base64ToString(base64Content),
            forceMoveMarkers: true,
          }]);
        }else {
          model.setValue(base64ToString(base64Content));
        }
      }

      function setModel(base64Url) {
        const model = monaco.editor.getModel(monaco.Uri.parse(base64ToString(base64Url)));
        if (!model) return;
        editor.setModel(model);
      }

      function toggleVimMode(enabled){
        if (enabled) {
          if (vimMode) {return};
          vimMode = initVimMode(editor, true, VimStatusBarAdpator);
        }else {
          vimMode?.dispose();
          vimMode = null;
        }
      }
    </script>
  </body>
</html>