feat(branches): add Merge Branch dialog and confirm flow

Introduce a modal dialog to configure and confirm branch merges. It replaces the old prompt-based workflow and lets users choose a merge strategy with localized labels. Confirming the dialog runs the merge, refreshes views, and clears the pending merge target. - Add a merge dialog UI with strategy options and keyboard support. - Replace prompt-based merge flow with a state-driven confirm dialog. - Include CSS for dialog layout, responsive sizing, and styling.
2026-09-01 22:27:59 +02:00
parent add98f962e
commit 106cc98afb
3 changed files with 183 additions and 4 deletions
@@ -0,0 +1,119 @@
+<script lang="ts">
+  import { onMount } from "svelte";
+  import { Check, GitMerge, LoaderCircle, X } from "@lucide/svelte";
+  import type { AppLanguage, GitBranch, MergeStrategy } from "../types";
+
+  interface Props {
+    branch: GitBranch;
+    currentBranch: string;
+    isBusy: boolean;
+    language: AppLanguage;
+    onMerge: (strategy: MergeStrategy) => void;
+    onClose: () => void;
+  }
+
+  let {
+    branch,
+    currentBranch,
+    isBusy = false,
+    language = "en",
+    onMerge = () => {},
+    onClose = () => {},
+  }: Props = $props();
+
+  let strategy = $state<MergeStrategy>("default");
+  const isGerman = $derived(language === "de");
+  const options = $derived([
+    {
+      value: "default" as const,
+      label: isGerman ? "Standard" : "Default",
+      description: isGerman ? "Git wählt Fast-forward oder erstellt einen Merge-Commit." : "Git chooses fast-forward or creates a merge commit.",
+    },
+    {
+      value: "squash" as const,
+      label: "Squash",
+      description: isGerman ? "Fasst alle Änderungen zu einem neuen Commit zusammen." : "Combines all changes into one new commit.",
+    },
+    {
+      value: "ff-only" as const,
+      label: "Fast-forward only",
+      description: isGerman ? "Bricht ab, wenn ein Merge-Commit erforderlich wäre." : "Stops if a merge commit would be required.",
+    },
+    {
+      value: "no-ff" as const,
+      label: "No fast-forward",
+      description: isGerman ? "Erstellt immer einen eigenen Merge-Commit." : "Always creates a dedicated merge commit.",
+    },
+  ]);
+
+  function submit(event: SubmitEvent) {
+    event.preventDefault();
+    if (!isBusy) onMerge(strategy);
+  }
+
+  function handleKeydown(event: KeyboardEvent) {
+    if (event.key === "Escape" && !isBusy) onClose();
+  }
+
+  onMount(() => {
+    window.addEventListener("keydown", handleKeydown);
+    return () => window.removeEventListener("keydown", handleKeydown);
+  });
+</script>
+
+<div class="dialog-backdrop app-chrome-backdrop" role="presentation">
+  <div class="dialog merge-branch-dialog" role="dialog" aria-modal="true" aria-labelledby="merge-branch-title" tabindex="-1">
+    <header class="dialog-header merge-branch-header">
+      <div class="merge-branch-heading">
+        <span class="merge-branch-icon" aria-hidden="true"><GitMerge size={18} /></span>
+        <div>
+          <span class="eyebrow">{isGerman ? "Branches zusammenführen" : "Combine branches"}</span>
+          <h2 id="merge-branch-title">{isGerman ? "Merge konfigurieren" : "Configure merge"}</h2>
+        </div>
+      </div>
+      <button class="dialog-close" type="button" onclick={onClose} disabled={isBusy} title={isGerman ? "Schließen" : "Close"}>
+        <X size={18} aria-hidden="true" />
+      </button>
+    </header>
+
+    <form class="merge-branch-form" onsubmit={submit}>
+      <div class="merge-branch-route" aria-label={isGerman ? "Merge-Richtung" : "Merge direction"}>
+        <div>
+          <span>{isGerman ? "Quell-Branch" : "Source branch"}</span>
+          <strong>{branch.name}</strong>
+        </div>
+        <GitMerge size={18} aria-hidden="true" />
+        <div>
+          <span>{isGerman ? "In aktuellen Branch" : "Into current branch"}</span>
+          <strong>{currentBranch || "HEAD"}</strong>
+        </div>
+      </div>
+
+      <fieldset class="merge-strategy-fieldset" disabled={isBusy}>
+        <legend>{isGerman ? "Merge-Strategie" : "Merge strategy"}</legend>
+        <div class="merge-strategy-grid">
+          {#each options as option}
+            <label class:active={strategy === option.value} class="merge-strategy-option">
+              <input type="radio" name="merge-strategy" value={option.value} bind:group={strategy} />
+              <span class="merge-strategy-check" aria-hidden="true">
+                {#if strategy === option.value}<Check size={13} />{/if}
+              </span>
+              <span class="merge-strategy-copy">
+                <strong>{option.label}</strong>
+                <small>{option.description}</small>
+              </span>
+            </label>
+          {/each}
+        </div>
+      </fieldset>
+
+      <div class="merge-branch-actions">
+        <button class="btn-secondary" type="button" onclick={onClose} disabled={isBusy}>{isGerman ? "Abbrechen" : "Cancel"}</button>
+        <button class="btn-primary" type="submit" disabled={isBusy}>
+          {#if isBusy}<LoaderCircle class="spin" size={16} aria-hidden="true" />{:else}<GitMerge size={16} aria-hidden="true" />{/if}
+          {isGerman ? "Branch mergen" : "Merge branch"}
+        </button>
+      </div>
+    </form>
+  </div>
+</div>