MD Editor: Started work on input interface

Created implementation for codemirror, yet to use it.

resources/js/markdown/inputs/interface.ts

@@ -0,0 +1,71 @@
+
+export interface MarkdownEditorInputSelection {
+    from: number;
+    to: number;
+}
+
+export interface MarkdownEditorInput {
+    /**
+     * Focus on the editor.
+     */
+    focus(): void;
+
+    /**
+     * Get the current selection range.
+     */
+    getSelection(): MarkdownEditorInputSelection;
+
+    /**
+     * Get the text of the given (or current) selection range.
+     */
+    getSelectionText(selection: MarkdownEditorInputSelection|null = null): string;
+
+    /**
+     * Set the selection range of the editor.
+     */
+    setSelection(selection: MarkdownEditorInputSelection, scrollIntoView: boolean = false): void;
+
+    /**
+     * Get the full text of the input.
+     */
+    getText(): string;
+
+    /**
+     * Get just the text which is above (out) the current view range.
+     * This is used for position estimation.
+     */
+    getTextAboveView(): string;
+
+    /**
+     * Set the full text of the input.
+     * Optionally can provide a selection to restore after setting text.
+     */
+    setText(text: string, selection: MarkdownEditorInputSelection|null = null): void;
+
+    /**
+     * Splice in/out text within the input.
+     * Optionally can provide a selection to restore after setting text.
+     */
+    spliceText(from: number, to: number, newText: string, selection: MarkdownEditorInputSelection|null = null): void;
+
+    /**
+     * Append text to the end of the editor.
+     */
+    appendText(text: string): void;
+
+    /**
+     * Get the text of the given line number otherwise the text
+     * of the current selected line.
+     */
+    getLineText(lineIndex:number = -1): string;
+
+    /**
+     * Wrap the current line in the given start/end contents.
+     */
+    wrapLine(start: string, end: string): void;
+
+    /**
+     * Convert the given screen coords to a selection position within the input.
+     */
+    coordsToSelection(x: number, y: number): MarkdownEditorInputSelection;
+}